Dodigi Super Strong Vacuum Suction Cup Stainless Steel Triple Hooker for Bathroom Kitchen Hooks Holder Set of 2 Hooks made of stainless steel,the cover made of ABS plastic, the suction cup made of rubber Easy to install: Turn to fix for locking object ; Turn to release for loosing, and could change to anywhere at anytime Strong vacuum suction, so don't worry because of wet and falling Could hold up to 7.5kgs/15lbs 100% money back guaranteen