Thor

A cavity inside the head is partially filled with steel shot which adds to the weight, prevents rebound and delivers 'dead' blows of maximum force. Faces are designed to wear and to be replaced by...

Chrome plated zinc head (except THO720 which has a cast iron head) with two screw-in nylon faces which are designed to be replaced when worn THO708, THO720, THO710R and THO712R are fitted with...