Metric O-ring assortment kit from Tekson

Black O-rings
Withstands from -10 to 110 degrees
Hardness: 65-70 HA
Material: Nitrile (NBR)

3 x 1.5mm
4 x 2mm
5 x 2mm
7 x 1.5mm
10 x 1.5mm
13 x 1.5mm
10 x 2.5mm
11 x 2.5mm
13 x 2.5mm
14 x 2.5mm
16 x 2.5mm
18 x 2.5mm
19 x 2.5mm
21 x 2.5mm
22 x 2.5mm
18 x 3.5mm
20 x 3.5mm
22 x 3.5mm
23.5 x 3.5mm
25 x 3.5mm
26.5 x 3.5mm
28 x 3.5mm
30 x 3.5mm
31 x 3.5mm
33 x 3.5mm
34.5 x 3.5mm
36 x 3.5mm
38 x 3.5mm
41 x 3.5mm
44 x 3.5mm
47 x 3.5mm
50 x 3.5mm.