These MST factory replacement o-rings are designed to seal the P3 High-Smooth shock absorbers used on MST 1:10 drift vehicles. The white color makes them easy to identify and inspect during maintenance. The pack contains 10 o-rings, providing enough spares to service multiple shocks or keep extras on hand. Features: White color for easy inspection Pack of 10 o-rings For MST P3 High-Smooth shocks 7/7/26 cs