Rubber gasket set that is installed on the watch back case,can cover the gap between the watch band
Play role in watch waterproof,suitable for watch repair and DIY watchmaker
O-rings thickness: 0.5mm.
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.
Comes 50pcs each size in a poly bag (total: 50pcs x 19 = 950pcs)

Technical Details

Product Details

Product Dimensions

Package Dimensions
Width : 4.6 inch
Height : 0.5 inch
Length : 6.6 inch

Item Weight: 0 ounce (View shipping rates and policies)
Shipping Weight: 0.48 ounce (View shipping rates and policies)

ASIN : B01GLDQQNE