Chase Dehart signatureMaterial: nylonAxle: 3/8", 14mmDiameter (inch, mm): 1.42", 36mmLength (inch, mm): 4.125", 105mmExtra info:Chase Dehart signature,sold as single,durable nylon composite sleeve,low profile 4130 heat-treated CrMo insert,packing unit includes 1 CrMo insert plus sleeve and 1 replacement sleeveWeight (kg): 0.170Color: black