FKM O-Ring Set 1.5mm CS 3-6mm ID, 8pcs Viton®-Grade for Model Engine/Piston

Your seal won’t “flatten and forget” – ideal for piston rods, small cylinders, and fuel connectors. ●Aging & chemical resistant – Withstands ozone, UV, solvents, acids, and cleaning agents. Compatible with Hornby and similar model engine assemblies.