[ADHESIVE or SCREWS]-- Corner shower provide two installation methods: UPGRADED strong and non-marking adhesive stickers and screws, both are easy to install. And (this set shower shelves ONLY fits 90° right angle corner, NOT suitable for rounded corners) [ANTI-CORROSION and RUSTPROOF]-- Our bath corner shelves are onstructed by premium grade stainless steel with matt black finish, shinning and modern appearance with the anti-corrosion and rustproof function. [Drain Fast]-- The hollow bottom design helps a fast draining and keep subjects dry. [Large Storage And Strong Bearing Capacity]: Thanks to the hook design and large shelves space, our bathroom storage shelves perfectly in storing bathroom and kitchen supplies. [Two Different Sizes]-- Our bathroom shower rack comes with 2 size shelves. We recommend you to install the large layer first and place the objects on it first, then install the small one so high bottles can fit as well. Material:Stainless steel colour:Black Package