[Good Air Tightness]This rubber gasket can replace old or damaged gaskets very well. It has good airtightness and is safe and not deformed. [Professional Design]Rubber gasket, special designed for jewelry casting machine, Suitable for jewelry makers and jewelry repairing workers to use. [Rubber Gasket]Casting machine gasket is made of quality rubber material, and non-deformation, not easy to crack. [Four Sizes]This casting machine accessory has 4 gaskets of different sizes. It is a professional jewelry processing accessory, which can make the casting machine ., Weight: 0.47289155199 Pounds, Manufacturer: Jaywool