diff --git a/src/main/java/com/otaviojava/demos/ddd/Product.java b/src/main/java/com/otaviojava/demos/ddd/Product.java
index c618520..819eb7a 100644
--- a/src/main/java/com/otaviojava/demos/ddd/Product.java
+++ b/src/main/java/com/otaviojava/demos/ddd/Product.java
@@ -88,4 +88,8 @@ public String toString() {
                 ", categories=" + categories +
                 '}';
     }
+
+    public static ProductBuilder builder() {
+        return new ProductBuilder();
+    }
 }