Hammer size: approx. 6.9 cm wide, 25.5 cm long, 2.5 cm thick. Ring size: approx. 1.1 ~ 2.4 cm diameter, 27 cm longWhen working with metals, you need a hammer with rubber and plastic heads to avoid scratches. This ring mandrel is made of hardened steel and is finely polishedCreate your own jewellery sets whenever you want. You will not only have some unique singleton players, but also save a lot of moneyEasy to use: use this double-sided rubber hammer to make rings on a dipstick. It can be used for flattening or reinforcing the ring, leaving a minimal hammered textureThis ring mandrel sizer hammer set tool kit is widely used in jewellery making, ring repair and ring enlargement