Different type suits for different kinds of jewelry making work JP2007: Rubber & Plastic Mallet hammer Equipped with two faces. one made of plastic acrylic and one made of hard rubber. Both faces 1-1/4" diameter. Wood handle: 9-1/2" overall length: 10-1/2" JP2008: Ball Pein Hammer (4 OZ) High carbon steel hammers have one flat end and one round end and are equipped with wood handles. Total Length: 6-1/4"/16cm JP2008A: Flat Pein Hammer Head length: 6.5cm/2.5", Overall length: 15cm/6" High carbon steel hammers with a 20mm diameter flat end and a 15mm diameter flat end on the other.Steel tube and rubber handle.