750pcs Set 12mm30mm Universal Rubber O Ring Watch Back Cover Seal Gaskets (0.7mm)

Features: High quality rubber material, wear-resistant and corrosion resistant, durable. This is a rubber o-ring round watch gasket that keep your watch water resistant. Excellent replacements for many of the popular brand watches and non brand watches. This is excellent for most watches, especially if you are doing watch battery replacement. Gaskets will stretch a couple of millimeters and will also work on watches of shapes other than round. Specification: Condition: 100percent 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