This product is a belt guide tensioner, with the codes VDL 1796309, 41796309, and 11. The tensioner is made from high-quality materials, ensuring increased durability and strength in use. The central component is made of metal, featuring a hexagonal screwdriver for easy installation. The edge of the tensioner is covered with a black material, likely a type of rubber or plastic, which provides adequate traction and reduces wear on the belt. The product is ideal for use in various mechanical applications where optimal tension of the transmission belt must be maintained.