about this project1. Made of high-quality ABS material, durable. Guaranteed quality and longevity, the weight varies, and the adsorption film has memory. When changing the installation location, just wash the suction cup under running water. After drying, the suction cup can be used again.2. Easy to install and uninstall, no need to use tools to install and remove. It's light and compact enough to take with you when you travel, and easily fits in your hotel room or guest bathroom for on-the-go, simply push down on the latch to secure the flap. Armrests attach securely to any flat, non-porous surface.3. Its load capacity is up to 7.5kg/16.5lbs, which has stronger adsorption capacity than traditional suction cups. The suction cup has a vacuum lock ring, which can effectively prevent the suction cup from releasing air pressure due to tension, and lock the vacuum firmly. Note: Do not forcibly rotate or tear the handle. Spin the section marked "OPEN" and "CLOSE" above the suction cup. Turn clockwise to lock, that is, "closed" state.4. Strong suction cup handle, shower room wall-mounted suction cup handrail, sliding door handle solid suction cup bathroom toilet, refrigerator door drawer cabinet handle suction cup, glass door cabinet, pressurized glue handle, bathroom handrail, suction shower cup handle, glass suction cup5. Portable support handle, suction cup vacuum pressure provides super grip, more convenient to open sliding doors/windows. Can be used on any flat surface without holes. It can only be installed on any smooth flat surface, including tile, glass, metal, plastic, etc. PLEASE NOTE: Do not use on rough or uneven surfaces