High quality material- SUS304 stainless steel, surface: brushed. The use of high quality stainless steel greatly reduces the appearance of scratches, corrosion, tarnishing and fingerprints in daily use. Double Gum Rubber Spring Slots- This feature anti - Slip is good for fixing. Rolling balls automatically adjust to thickness and grip each handle easily and tightly; also easy to release by lifting the handle. It can hang the handles whose diameter is 1.5cm-3.5cm. 2 Ways of installation - Two installation methods: -adhesive installation, you can stick it on a smooth surface. You can install it with the screws provided in the package. It is necessary to do the drilling for the installation. So this product is also applied to the rough surface. Waterproof Design-Made of premium T-304 stainless steel, it is suitable for all kinds of humid environment.You don't need to worry to know when it will be out of the glue. spraying water on the hook cannot affect the adhesive. Notes- The product should be pasted on a smooth surface, it is not suitable for rough walls, such as painted walls. Wait 48 hours before placing items. (Self-adhesive)