200Pcs/Set Repair Tools Rubber O-Ring Thickness 0.5mm/0.6mm Boxed Watch Back Case Rubber Waterproof for Watchmaker O-Ring Gasket

Brand new and high quality Material: Rubber Box size: 10.9 * 6.5 * 1.35cm(4.29 * 2.56 * 0.53in) Diameter of waterproof ring: 0.5mm(0.02in), 0.6mm(0.02in) Quantity: 200Pcs/Box Waterproof ring size: 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 Features: The rubber O-ring watch washer is used to keep the watch waterproof. Made of rubber, flexible, wear-resistant and durable. Including 200 pieces to meet your different needs. A perfect substitute for the sealing gasket of the watch back cover. It is suitable for watchmakers and repairmen. Notice: 1. The real color of the item may be slightly different from the pictures shown on the website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. Thank for your understanding. 3. 1cm=0.39''. Package Included: 200Pcs/set * Rubber O-Ring Set