diff --git a/src/main/java/net/kemitix/fontface/FontCache.java b/src/main/java/net/kemitix/fontface/FontCache.java
index afdacb7..3542931 100644
--- a/src/main/java/net/kemitix/fontface/FontCache.java
+++ b/src/main/java/net/kemitix/fontface/FontCache.java
@@ -1,9 +1,73 @@
 package net.kemitix.fontface;
 
-import net.kemitix.fontface.FontFace;
+import lombok.EqualsAndHashCode;
+import lombok.Getter;
+import lombok.RequiredArgsConstructor;
 
 import java.awt.*;
+import java.net.URI;
+import java.util.HashMap;
+import java.util.Map;
+import java.util.function.Function;
+import java.util.logging.Logger;
 
-public interface FontCache {
-    Font loadFont(FontFace fontFace);
+@RequiredArgsConstructor
+public class FontCache {
+
+    private static final Logger LOGGER =
+            Logger.getLogger(
+                    FontCache.class.getName());
+
+    private final Map<URI, Font> fileCache = new HashMap<>();
+
+    private final Map<FontAndSize, Font> fontCache = new HashMap<>();
+
+    private final FontLoader fontLoader;
+
+    public Font loadFont(final FontFace fontFace) {
+        LOGGER.finest(String.format("Requesting %s %d",
+                fontFace.getFontLocation(), fontFace.getSize()));
+        final Font baseFont =
+                fileCache.computeIfAbsent(
+                        fontFace.getFontLocation(),
+                        loadNewFontFile(fontFace));
+        return fontCache.computeIfAbsent(
+                FontAndSize.of(baseFont, fontFace.getSize()),
+                resizeFont());
+    }
+
+    private Function<URI, Font> loadNewFontFile(
+            final FontFace fontFace
+    ) {
+        return uri -> {
+            LOGGER.fine(String.format("Loading %s", uri));
+            return fontLoader.loadFont(fontFace);
+        };
+    }
+
+
+    private Function<FontAndSize, Font> resizeFont() {
+        return fontAndSize -> {
+            LOGGER.finer(String.format("Resizing %s to %d",
+                    fontAndSize.getFont().getName(), fontAndSize.getSize()));
+            return fontAndSize.font
+                    .deriveFont(Font.PLAIN, fontAndSize.getSize());
+        };
+    }
+
+    @Getter
+    @EqualsAndHashCode
+    private static class FontAndSize {
+        private final Font font;
+        private final int size;
+
+        private FontAndSize(final Font font, final int size) {
+            this.font = font;
+            this.size = size;
+        }
+
+        static FontAndSize of(final Font font, final int size) {
+            return new FontAndSize(font, size);
+        }
+    }
 }
diff --git a/src/main/java/net/kemitix/fontface/FontCacheImpl.java b/src/main/java/net/kemitix/fontface/FontCacheImpl.java
deleted file mode 100644
index 1133843..0000000
--- a/src/main/java/net/kemitix/fontface/FontCacheImpl.java
+++ /dev/null
@@ -1,74 +0,0 @@
-package net.kemitix.fontface;
-
-import lombok.EqualsAndHashCode;
-import lombok.Getter;
-import lombok.RequiredArgsConstructor;
-
-import java.awt.*;
-import java.net.URI;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.function.Function;
-import java.util.logging.Logger;
-
-@RequiredArgsConstructor
-public class FontCacheImpl implements FontCache {
-
-    private static final Logger LOGGER =
-            Logger.getLogger(
-                    FontCacheImpl.class.getName());
-
-    private final Map<URI, Font> fileCache = new HashMap<>();
-
-    private final Map<FontAndSize, Font> fontCache = new HashMap<>();
-
-    private final FontLoader fontLoader;
-
-    @Override
-    public Font loadFont(final FontFace fontFace) {
-        LOGGER.finest(String.format("Requesting %s %d",
-                fontFace.getFontLocation(), fontFace.getSize()));
-        final Font baseFont =
-                fileCache.computeIfAbsent(
-                        fontFace.getFontLocation(),
-                        loadNewFontFile(fontFace));
-        return fontCache.computeIfAbsent(
-                FontAndSize.of(baseFont, fontFace.getSize()),
-                resizeFont());
-    }
-
-    private Function<URI, Font> loadNewFontFile(
-            final FontFace fontFace
-    ) {
-        return uri -> {
-            LOGGER.fine(String.format("Loading %s", uri));
-            return fontLoader.loadFont(fontFace);
-        };
-    }
-
-
-    private Function<FontAndSize, Font> resizeFont() {
-        return fontAndSize -> {
-            LOGGER.finer(String.format("Resizing %s to %d",
-                    fontAndSize.getFont().getName(), fontAndSize.getSize()));
-            return fontAndSize.font
-                    .deriveFont(Font.PLAIN, fontAndSize.getSize());
-        };
-    }
-
-    @Getter
-    @EqualsAndHashCode
-    private static class FontAndSize {
-        private final Font font;
-        private final int size;
-
-        private FontAndSize(final Font font, final int size) {
-            this.font = font;
-            this.size = size;
-        }
-
-        static FontAndSize of(final Font font, final int size) {
-            return new FontAndSize(font, size);
-        }
-    }
-}
diff --git a/src/main/test/java/net/kemitix/fontface/FontCacheImplTest.java b/src/main/test/java/net/kemitix/fontface/FontCacheTest.java
similarity index 89%
rename from src/main/test/java/net/kemitix/fontface/FontCacheImplTest.java
rename to src/main/test/java/net/kemitix/fontface/FontCacheTest.java
index a1cc9da..64ec0f2 100644
--- a/src/main/test/java/net/kemitix/fontface/FontCacheImplTest.java
+++ b/src/main/test/java/net/kemitix/fontface/FontCacheTest.java
@@ -18,7 +18,7 @@ import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.verifyNoMoreInteractions;
 
 @ExtendWith(MockitoExtension.class)
-public class FontCacheImplTest {
+public class FontCacheTest {
 
     private final URI fontLocation = new File("font.otf").toURI();
     private final String colour = "colour";
@@ -36,7 +36,7 @@ public class FontCacheImplTest {
     @DisplayName("When cache is empty then load font")
     public void emptyCache() {
         //given
-        final FontCacheImpl fontCache = new FontCacheImpl(fontLoader);
+        final FontCache fontCache = new FontCache(fontLoader);
         final FontFace fontFace = FontFace.of(fontLocation, 26, colour);
         //when
         fontCache.loadFont(fontFace);
@@ -48,7 +48,7 @@ public class FontCacheImplTest {
     @DisplayName("When cache has font, but not size, then don't reload font")
     public void notInSize() {
         //given
-        final FontCacheImpl fontCache = new FontCacheImpl(fontLoader);
+        final FontCache fontCache = new FontCache(fontLoader);
         final FontFace previousFontFace = FontFace.of(fontLocation, 16, colour);
         fontCache.loadFont(previousFontFace);
         final FontFace fontFace = FontFace.of(fontLocation, 26, colour);
@@ -63,7 +63,7 @@ public class FontCacheImplTest {
     @DisplayName("When cache has font in size, then don't load font")
     public void available() {
         //given
-        final FontCacheImpl fontCache = new FontCacheImpl(fontLoader);
+        final FontCache fontCache = new FontCache(fontLoader);
         final FontFace fontFace = FontFace.of(fontLocation, 26, colour);
         //when
         fontCache.loadFont(fontFace);