This is a rubber o-ring round watch gasket that keep your watch water resistant, great for watch repair and DIY watchmaker.
Size: 19 different sizes from 12 to 30 mm: 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29 and 30mm.
Premium qaulity: O-rings gaskets made of grade rubber material, wear-resistant, resistant, stretchable, good elasticity.
Packages: Total 950pcs o-rings gaskets, 19 different sizes, thickness 0.5mm/0.6mm/0.7mm optional.
Guarantee: We offer a 12 month warranty, true worry- shopping experience. If you have any problem, feel to contact us, our professional mechanic will sort things out for you.