The String Stop has been completely redesigned. The difference between ours and others on the market is our SandTrap filled string stop rod. At the shot, the string hits the VOID rubber end transfering energy and vibration into the string stop. The SandTrap technology shifts inside the stop rod eliminating the vibration before reaching the bow effectively killing it before you feel it in the bow riser. We offer a front and rear mounting version, and we also offer custom brand specific models to ensure a perfect fit.