950Pcs Round Gaskets 0 Rings Seal Rubber Washers, Watch Gaskets Replacement Kit Black Watch Back O Ring for Watch Back Cover Seal Gaskets Kit, Watch Repair Parts, 12-30mm, 0.5mm

• ​​REDUCE GAPS: The rubber O-ring round watch gasket can cover the gaps between the strap and the movement, adding to the waterproof performance of the watch.
• VARIOUS SIZES: 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm.
• STRETCHABLE EXTENSIBILITY:Watch Gasket can extend a few millimeters, and can also be used on non-circular watches, helping you to use it on different types of watches to repair the watch.
• IDEAL WATCH REPAIR ACCESSORIES: O Rings is suitable for most watches, very suitable to help replace watch batteries, widely used in watch shops, watch repair shops, etc.
• HIGH-QUALITY MATERIAL:Watch Gaskets are made of rubber, wear-resistant and durable. The package includes 950 Watch Gaskets to bring you convenient and easy-to-operate watch repair tools.

Features: REDUCE GAPS: The rubber O-ring round watch gasket can cover the gap between the strap and the movement, adding to the waterproof performance of the watch. VARIOUS SIZES: 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm. STRETCHABLE EXTENSIBILITY:Watch Gasket can extend a few millimeters, and can also be used on non-circular watches, helping you to use it on different types of watches to repair the watch. IDEAL WATCH REPAIR ACCESSORIES: O Rings is suitable for most watches, very suitable to help replace watch batteries, widely used in watch shops, watch repair shops, etc. HIGH-QUALITY MATERIAL:Watch Gaskets are made of rubber, wear-resistant and durable. The package includes 950 Watch Gaskets to bring you convenient and easy-to-operate watch repair tools. Specification: Condition: 100% Brand New Material: Rubber Color: Black Thickness: 0.5mm/0.6mm/0.7mm(optional) Quantity: 950Pcs, 750Pcs (optional) 50Pcs for Each Size: 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm. Package Weight: Approx. 34g~42g Package Included: 1 x Pack of 950/750Pcs O-Ring Rubber Seal