12 bearing locknut sockets. Includes tool board display. Made of high strength steel. Very durable, resist rounding out. Weight 34 lbs., 4 oz. Wheel bearing locknut's are easy to remove or install with these specially designed sockets. They're made of high strength steel and resist rounding out. This display is a selection of popular sizes in 6- or 8-point, which include the following sizes: 2-9/16" hex, 3-1/4" hex, 3-1/4" 8pt., 3-1/2" hex, 3-7/8" 8pt., 4" hex, 4-1/8" hex, 2-1/2" hex, 2-5/8" hex, 2-3/4" hex, 2-9/16" hex rounded, 2-7/8" hex.