Chrome Plated Zinc Heads (except 720) with Nylon Faces. Fitted as Standard with Screw-In White Nylon Faces and Plastic or Wood Handle According to Size . Alternative Replacement Faces Colour Coded to Distinguish Hardness are Also Available as Buy-In Items. Faces are Designed to Wear and are Replaceable by Hand. Used Due to the Easily Interchangeable Heads As a Multi Purpose Striking Tool in Most Assembly Applications Including Engineering, Furniture Shopfitting Partitioning Double Glazing Injection Moulding Dies etc.