76 Lock-A-Socket posts allow you to have 1/4", 3/8" and 1/2" drive Lock-A-Sockets. Heavy duty powder coated steel. Swiveling handles for easy transporting. Carry 5 sets of sockets at one time. Rubber feet for a non-skid grip This new design uses the same concept as the popular Lock-A-Socket. To lock the socket, just turn the socket to the right 90 degrees. To unlock it, simply turn the socket back to the left 90 degrees. The LAS TRAY is made form 16 gauge powder coated steel, for long-lasting durability. The LAS TRAY comes equipped with two swivel handles for easy carrying, and also rubber pegs on the bottom, to keep the tray from sliding and scratching painted surfaces. The LAS TRAY has two rows of 1/2" drive locking posts. Each row consisting of 14 posts. Two rows of 3/8" drive Locking posts, each row consisting 14 posts. One row of 1/4" drive Locking posts consisting of 20 posts.