THE LASSO: The soft silicone cord is fully adjustable to fit everyone with the Secur-Lok system, in a single and double lock, making it easy to tighten or loosen. Dura Technology made-to-fit materials not only stand the test of time but also stand the wear and tear. Rock Solid cock rings combine quality and comfort for your best performance. The Lasso cock ring: fully adjustable to fit everyone. compatible with silicone personal lubricants. easy to clean with soap and water