This is a zip line system for Hot Wheels toy cars. In addition to the printed files 2 0.5x20tpi bolts, a 0.5x20tpi tap, and 2 1/16in pins are needed to complete the system. The holes in the clamps need to be tapped and the 1/16in pins are used to hold the flaps into the car carrier body. Supports have already been placed in the model from meshmixer.