950pcs/set 12mm-30mm Universal Rubber O-Ring Watch Back Cover Seal Gaskets Kit Replacement O-rings(0.7mm)

• 【Wide range of applications】This is excellent for most watches,Gaskets will stretch a couple of millimeters and will also work on watches of shapes other than round.
• 【19 sizes available】12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 22mm, 23mm, 24mm, 25mm, 26mm, 27mm, 28mm, 29mm, 30mm.
• 【High quality materials】The use of high quality rubber material, wear resistance, corrosion resistance, durable, economical and practical.
• 【Total number 950】Comes 50pcs each size in a poly bag (total: 50pcs x 19 = 950pcs)
• 【Waterproof】This is a rubber o-ring round watch gasket that keep your watch water resistant.Rubber gasket set that is installed on the watch back case,can cover the gap between the watch band and movement

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