Radial Tube Bumper, Free Height: 3.48 in./88.4 mm Length: 42 in./1066.8 mm Peak Force: 25,900 lbs./11,5500 N – Radial Tube Bumpers, RTB are designed for low end-load applications, 1,500 to 42,700 lbs. uniformly loaded the radial tube bumpers are oval in shape and available in 6 to 42 inch lengths. Any application involving shock or collision protection is suitable for using TecsPak Radial Tube Bumpers.