Hign-concerned Chemical:NoneSpecial Features:brakeItem Diameter:10inchItem Weight:2.5kgItem Height:10inchItem Width:10inchItem Length:10inchOrigin:Mainland ChinaMaterial:steelFoot brake Rear hydraulic double disc brake caliper system with oil cup For 150cc 200cc 250cc ATV UTV Buggy Quad Dirt Bike parts Note: 1.Instruction is not included, professional installation is highly recommended. 2.Please check the size measurement chart carefully to ensure it's the right item you need before making payment. 3.Please allow 0.5-1.0cm difference due to manual measurement.(1 cm=0.3937''). 4.The color of the actual items may slightly different from the listing images due to different computer screen, thanks for your understanding. Please check the product description and pictures carefully before your purchase to ensure it's the correct part you need!