4Bumpers&reg; PRIME &ndash; The BEST Solid Steel License Plate Frame Bumper Protector Great 24/7 protection for your bumpers when securely attached to license plate area in bumper. Quick and easy one time installation. 4Bumpers US patented design prevents dings and scratches during parking by providing approximately 4 inches from other bumpers. 4Bumpers attaches at the license plate level and therefore provides protection only when your license plate area is located in the bumper and not above in the trunk or hatch. Made in the USA, 4Bumpers is the best US patented, solid steel, license plate frame bumper protector on the market.