The coating around the metal parts insulates it from water and prevents direct contact with it, which will prevent your shower shelf from any corrosion problem. Its hollow bottom allows water to drain quickly, keeps it dry efficiently and prevents the proliferation of bacteria. No need to drill or use a tool. Don't be afraid of damaging the wall, keep it as it is. The installation of the product is simple, you just need to stick the adhesive part on the wall and hang the shower shelf on the hook to complete the installation. Please note that the wall must be dry when you apply the adhesive to ensure a better hold. The reinforced metal and the stronger adhesive will allow the shower shelf to remain stable. You can easily place your bathroom and kitchen products in it. It can hold up to 20 lbs (9 kg) without falling. No-drill installation is compatible with wall tiles, marble walls, tempered glass, smooth metal sheets and smooth wooden walls. Drilling installation is suitable for painted walls, wallpapered walls, whitewashed walls and cement walls.