The T&S Brass TS16X O-Ring is a black, lead-free neoprene seal with a 5/8" inner diameter and a 3/32" width.This small but crucial component is designed for use in various T&S Brass faucet models to prevent leaks.Weighing only 0.001 lbs, it ensures a tight and reliable seal for your plumbing fixtures. https://partsfe.ca/ts16x-ts-brass-o-ring-58-id-x-332-width