HotelSpa AquaCare series Insta-mount 18" Towel Bar 18 Inch Towel Bar mounts instantly on all smooth or textured surfaces without tools, drilling and surface damage  Safe and secure on ceramic, stone and mosaic tile, shower enclosures, glass shower doors and mirrors  Dual-mount system includes Power-suction Locks for smooth surfaces and Silicone Adhesive Brackets for textures surfaces