Features:
Rubber watch gasket set that is installed on the watch back case,can cover the gap between the watch band and movement
Play a role in watch waterproof,suitable for watch repair and DIY watchmaker.
This is a set of 950 pieces new o-rings gaskets, the o-rings thickness 0.5mm, 0.6mm with different 19 sizes.
This is a set of 750 pieces new o-rings gaskets, the o-rings thickness 0.7mm with different 15 sizes.

Specifications:
Material: Rubber
Size: 12-30mm for 0.5 and 0.6mm rings
        16-30mm for 0.7mm rings
Quantity: 950 pcs in total for 0.5mm and 0.6mm
                750 pcs in total for 0.7mm

Package include:
1 bag Rubber O Rings(Size optional)