1.[Installation]: When installing the suction cup sponge holder, please dry the sink wall without leaving any water droplets or oil stains, and keep the inner wall clean and dry. and then quickly attach it to the inner wall to squeeze out the air in the suction cup and wait for some hours. Note: Not suitable for installation on rocky material inner walls, which must be kept smooth and flat. 2.[Suction Cup Sponge Holder]: Our kitchen sink holder requires no tools, no drilling, no punching. Compared with the adhesive sponge holder, the advantage of the suction cup sponge holder is that it will not leave unsightly black and gray glue marks on the inner wall of your sink (when you remove it), and it will not damage the exterior structure of your sink. Perfect for use in the kitchen, bathroom and anywhere you need it. 3.[More Hygienic]: The hollow design of the suction cup sink sponge holder increasing air flow speed, drains faster, can keep cleaning tools away from the dirty water in the sink, effectively prevent pollution, r and more hygienic. Kitchen sink sponge holder can keep you kitchen more organize. 4.[Anti-rust and ]: The in-sink sponge holder for sink is made of SUS 304 stainless steel with anti-rust coating, can effectively prevent rust even be used for a long time under humid conditions. The high-hardness stainless steel of kitchen sponge holder for sink has solid construction, durable and not easy to bend and break. 5.[Keeping Kitchen Clean and Tidy]: The small but versatile suction cup sponge holder for kitchen sink can not only help you make the kitchen more tidy and clean, but it will also leave a deep impression on your family and guests.