Black CNC Manual Cam Chain Tensioner. Condition : 100% Guaranteed Brand New. Made from High Grade Aluminium 6061-T6. CNC Billet & Hard Anodized. Include Gasket for preventing oil spilling. Gasket is made in EU. Adjustable. Need using 7mm and 14mm tools for screwing hexagonal nut and thread. Best Cutting on the tensioner bolt. Please make sure the oil passage is blocked off before installation. QTY : 1 set (with Gasket). Include Installation Instruction. *** We highly suggest you to find a Professional for installation. ***