Set of 170 mini o-rings for watches

Includes 10 of each of the sizes below (internal diameter x thickness):

0.50 x 0.30mm

0.50 x 0.40mm

0.50 x 0.45mm

0.50 x 0.50mm

0.64 x 0.31mm

0.60 x 0.35mm

0.60 x 0.40mm

0.60 x 0.45mm

0.60 x 0.50mm

0.60 x 0.55mm

0.60 x 0.60mm

0.60 x 0.65mm

0.70 x 0.40mm

0.70 x 0.45mm

0.70 x 0.50mm

0.70 x 0.55mm

0.70 x 0.60mm