Application: The toy hauler door springs designed and manufactured to be installed into toy hauler ramp door to complete a leverage function by making it easier to lift or lower the door 173067 Ramp Spring: If you have a broken spring prithee timely replace toy hauler torsion spring can eliminate the risk of the ramp door collapsing and causing damage or injury Size: Our toy hauler ramp springs has 11 turn spring, wire diameter is 3/8", barrel diameter 1", coil length 5" , spring length overall 10" Material: Our toy hauler loading door spring are made out of heavy duty steel, exterior semi-gloss coated with black powder Easy to install: The toy hauler gate torsion springs is easy to install, you need to use a tool to remove the hinge and then put our hauler ramps spring 173067 Ramp Door Spring Replacement For Toy Hauler Trailer Gate Spring Assist, Utility Toy Hauler Ramp Gate Spring Black