2pcs 1 X Bicycle Chain Tensioner Adjuster. Origin: Mainland China Size: 7.27cm (2.86in) x 2.65cm (1.04in) x 1.42cm (0.56in) Net weight: about 34.1g Main material: aluminium alloy + stainless steel Note: Due to different monitor settings and lighting conditions, the actual color of the item may vary slightly from the pictures.