This is a 1.75 ounce tube of Finish Line Fiber Grip Carbon Fiber Assembly Paste. Fiber Grip™ is specially designed to create friction and reduce slippage between clamped carbon fiber surfaces. Fiber Grip eliminates the need to over tighten clamps to achieve secure connections. Over tightening can cause internal fractures and fatigue of carbon fiber parts. Apply Fiber Grip in a thin film to clamping areas of stems, handlebars, seat posts, and seat tubes. Tested and approved by leading carbon fiber component manufacturers.