This is the replacement Starter Wheel Pulley for use with the DuraTrax Universal Starter Box (DTXP5701). FEATURES: Nylon construction Direct replacement parts INCLUDES: One front starter wheel pulley half One rear starter wheel pulley half with gear REQUIRES: Installation COMMENTS: This item sandwiches the rubber starter wheel and is held together with four 3mm countersunk screws. DuratraxPart DTXB7016-004