Thor rubber mallets are a one-piece design with rubber head and self locking handle. These semi-hard rubber mallets give a gentle but firm blow with little rebound. Used as a general-purpose mallet in automotive, industrial, brewery, DIY, garden landscaping and camping applications. Black Head: Ideal for use under damp conditions or outdoors.White Head: Will not discolour or leave marks on work surfaces.Weight: 1200g (2 1/2lb).Diameter 90mm (3 1/2 in). Black Head