●Patent-Pending feature uses pressure plate and large bolt to generate tremendous clamping force. ●Innovative design wraps around bumper reducing crush-risk found in U-bolt and opposed-plate hitches. ●Eliminates common failure points such as load-bearing welds and bolts found in other hitches. ●Hitch fits 4.0 x 4.0 Inch Square RV Bumpers; Carries 300 pound-feet of bikes and other cargo. ●Made in the USA. Fits 4.0 inch x 4.0 inch Square RV Bumper