Tenn-Tex Plastics Quick Tray Roll-Out Systems. Use with any brand of drawer slides. Shelves can be adjusted vertically in 1-1/4" increments. Non-handed, tool-free adjustment. 75 lb. dynamic, 150 lb. static. Patented Hook Dowel makes installation easy: simply slide the dowel into the holes and lock into place. No tools required. Easy tray height adjustment: Lift up on slide to unhook and move it to the new position. 2" supports for face frame cabinetry with face frame baseplates. Bag includes: 4 Supports, 8 Hook Dowels, and 8 machine screws (6-32 x 3/8). White in color.