The retractor is the male portion of the seat belt where the actual seat belt webbing material feeds out of. The seat belt retractor is made up of a spring, some gears, a sensor, a pyrotechnic explosive device, and a mechanism that is engineered to also lock up when a crash or accident occurs. The seat belt retractor is responsible for locking up in the case of a sudden stop. It is also connected to the airbag system in a vehicle. In this CAD Model i draw a parts from retractor of seatbelt.