10 x spare V2/V3 piston O-rings

Description

People keep damaging the O-rings on our V2 pistons through incorrect lubrication, so here are 10 O-rings to fit the piston, size 10.5 x 1.5mm, nitrile 70. Enough to replace 5 pistons.

You should be using thick silicone grease on the piston and cylinder, not thin oil or aerosol sprays. 

Piston not included.