High quality rubber coating processing. Weight Accuracy: less than 2% error. More than 10kg of plates are easy to hold gurippuho-rudyingutaipu to be refilled. The inside of the plates with rings made of metal. Hole Diameter: 50 mm. 5kgx2. (Note) This plates are sourced from will be shipped. For imported goods, because it may also be out of stock by e-mail or telephone available in advance before placing on the inside.