The Kreg KKS1030 Klamp Block Set is the easiest way to quickly bring your project into alignment and center your Bench Klamp on the joint line.The Kreg KKS1030 Klamp Block Set also includes 5 plastic blocks and mounting hardware. Features: * Bring your projaect into alignment * Center the bench on the joint line What"s In The Box: * Kreg KKS1030 Klamp Block Set