diff --git a/src/main/java/tech/units/indriya/AbstractQuantity.java b/src/main/java/tech/units/indriya/AbstractQuantity.java
index 2a226b17..af9634c5 100644
--- a/src/main/java/tech/units/indriya/AbstractQuantity.java
+++ b/src/main/java/tech/units/indriya/AbstractQuantity.java
@@ -110,7 +110,7 @@
  *
  * @author <a href="mailto:werner@uom.technology">Werner Keil</a>
  * @author Andi Huber
- * @version 2.5 Dec 14, 2022
+ * @version 2.6 Oct 6, 2024
  * @since 1.0
  */
 @API(status=STABLE)
@@ -122,8 +122,14 @@ public abstract class AbstractQuantity<Q extends Quantity<Q>> implements Compara
     */
     private static final long serialVersionUID = 293852425369811882L;
 
+    /**
+     * Holds the measurement unit
+     */
     private final Unit<Q> unit;
 
+    /**
+     * Holds the measurement scale
+     */
     private final Scale scale;
     
     /**
diff --git a/src/main/java/tech/units/indriya/AbstractUnit.java b/src/main/java/tech/units/indriya/AbstractUnit.java
index 98b49582..610a76f3 100644
--- a/src/main/java/tech/units/indriya/AbstractUnit.java
+++ b/src/main/java/tech/units/indriya/AbstractUnit.java
@@ -122,6 +122,9 @@ public abstract class AbstractUnit<Q extends Quantity<Q>>
 	 */
 	private String symbol;
 	
+    /**
+     * Holds the measurement scale
+     */
 	protected Scale scale = ABSOLUTE;
 
 	/**