It is made of high-quality ABS material, strong and durable, with a load capacity of 7.5 kg / 16.5 lbs, which has an impact capacity. Stronger adsorption than traditional cupping. The suction cup has a vacuum locking ring, which can effectively prevent the suction cup from releasing air pressure due to tension and tightly locks the vacuum. Note: The weight must not exceed the capacity. 15 kg load capacity, otherwise it will fall off. The sturdy plastic handle, due to its function underneath, will not slip out of your hands, even when wet, for safe protection. for baths, bathtubs and showers. Note: Do not use force or tear the handle. The part marked \"OPEN \" and \"CLOSE \" above the rotating suction cup. Clockwise rotation is the locked position, i.e. the \"closed \" state.< span class=\"a-list-item\">Handle Strong suction cup, Handrail Wall suction cups for Shower room, Sliding door handles and Strong suction cup for Toilet and Bathroom, suction cups for cabinet handles; refrigerator door drawers, refrigerator cabinets glass doors, pull handles; Pressure adhesive, bathroom handles, shower suction cup handlesEasy to use; install and uninstall, no need to use installation and removal tools. It is lightweight and compact so you can take it with you when traveling and easily install it in a hotel room or bathroom and carry it when needed. Just press down the locking tab to secure the tab. The armrest can be firmly attached to any flat, non-porous surface. Portable support handle, the vacuum pressure of the suction cup provides a super grip, more convenient to open doors/windows. Can be used on any flat surface without holes. It can be installed just like any flat smooth surface including tiles, glass, metal, plastic etc. Please note: Do not use on rough or uneven surface! ! ! ?? Suction cup assembly Step 11. Wipe the place to be installed. and the suction cup should be installed in a smooth and dry place Step 2 suction cup installation2. After wiping the place of; assemble, tear off the protective film from the suction cup Step 3 Suction cup assembly3. Align the suction cup with the off position; install and press firmly to drain step 4 suction cup installation4. 60 degree rotation clockwise