Information： Watch Back Case Gasket Seal Washers Tool Waterproof Repairing Rubber O Rings Description: Watch Case Back Gaskets: Rubber O rings set that is installed on the watch back case, can cover the space between the watch bands and movement.Feature: Have waterproof, and protector wristband watches, suitable for watch repair and DIY watchmaker.Size: Diameter: 0.5mm, 0.6mm, rings: 0.5x16, 0.5x18, 0.5x20, 0.5x21, 0.5x23, 0.5x24, 0.5x26, 0.5x27, 0.5x30,0.6x16, 0.6x17, 0.6x20, 0.6x22, 0.6x23, 0.6x24, 0.6x25, 0.6x26, 0.6x28.Material: Seal Washers made of rubber, flexible, wear resistant, and durable.Nice Accessories: A perfect substitute for the sealing gasket of the watch back cover. Specification: Material: Rubber Color: Black Size Chart: Box Size 10.9cmx6.5cmx1.35cm/4.29inchx2.56inchx0.53inch Package Includes: 1 Box Watch Case Back Gaskets On Jul 15, 2024 at 00:56:46 PDT, seller added the following information: