KINGSO 16" Stainless Steel Towel Bar with Suction Cups Material: Stainless steel 304 rod + ABS cup Length: 40cm/16" Package included:1x Towel Bar Surface to instal: Glass/Mirror/Acrylic/Ceramic/Airtighted smooth walls Installation: 1: Clean the wall surface before apply the sucker. 2:Take off the protection over of the suction cup. 3:Use the ingers to bent and spread the suction cup. 4:Press the middle of the suction cup to release the remaining air. 5:Make sure t