Space-saving: The 2-tier design with each layer 22.2*10.63 inches in size is conducive to making full use of your upper cabinets, offering more space for your kitchen, and avoiding space waste. Adjustable Bearing: The three-gear assistance adjustment(2.2-11.02 lbs, 11.02-15.4 lbs,122-26.4 lbs) through the adjusting button on the right and left sides can meet your different storage needs. Sturdy Construction: The 2.16" thickened double-lever levers, 96" thick wall brackets, 0.23" thick layer plates, and plastic sprayed steel side plates, along with firm fixing with screws, ensure sturdy construction and strong load-bearing capacity. Considerate Design: The 1.96" thick wall brackets are thick enough to elude face-frame stile and most types of hinges. Its pull-down design also makes this shelf support suspended installation, sliding doors, upward sliding doors, and double doors. Smooth Pulling: Advanced pneumatic damper system with strong tension spring ensures easy pull-down and stable push-back even for teenagers and elderly people. You can press the adjusting button inwards and lock/unlock it clockwise/counterclockwise to strengthen/reset the pull-down resistance, thus balancing resistance to prevent falling too fast.