Round Car Interior Pull Ring Car Rear Bumper Warning Loop Installed in the rear bumper can play a warning role to reduce the accident of being rear-ended. It can also be installed in the car as a hand-pull ring. Strong nylon strap,Ring Diameter : 3.94 inches / Total length 9.65 inches Made for a car interior / exterior accessory only not to use as a tow hook The fastener is in steel and the strap is made of nylon-reinforced plastic.