Conditioner - drive belt tensioner. Spray. 170 g. It prevents squeaking and slippage of belts. It penetrates inside the fibers, restores elasticity and flexibility, improve performance properties of the belts. It increases the belt tensioning power and improves performance of the units and battery charging. It reduces belt operating wear and extends its service life. Application: Attach a tube to the diffuser and carefully spray the product on the internal belt surface while the engine is running.