Outgeek Metric O-Ring Kit Rubber Washer Seals Assortment Set 950PCS Watch Back Gasket Waterproof Simple Seal Washers Set Rubber Seal Washers (0.5MM (12MM-30MM))
Size: There are 10 sizes of watch gaskets rubber kit (31mm-40mm) with multiple options, and the thickness of a single layer is 0.8mm
Material: High-quality watch repair waterproof rings are non-toxic and safe to use, wear-resistant,each bag contains 50 pieces in a plastic bag (50 pieces x 10= 500pieces in total)
Usage: Watch case back gasket is installed on the watch case to cover the gap between the watch band and the movement
Application: Watch orings tool plays an important role in the waterproof of the watch,watch gasket replacement suitable for watch repair and very suitable for watchmakers
Quality Assurance: Our tiny watch o ring gaskets has quality assurance. if there is any quality problem , please contact us and provide the order number, we will always provide you with 100% satisfactory service