Finish Line Fiber Grip Carbon Fiber Bicycle Assembly Gel Fiber Grip(TM): Carbon Fiber Assembly Gel is specially designed to reduce slippage between clamped carbon fiber surfaces. Fiber Grip eliminates the need to over tighten clamps to achieve secure connections. Apply Fiber Grip in a thin film to clamping areas of stems, handlebars, seat posts, and seat tubes to eliminate the need for over tightening, which can cause internal fractures and fatigue of carbon fiber parts. Tested and approved by leading carbon fiber component manufacturers. Clear, Non-staining Non-Toxic