Stainless Steel GAUGE WHEEL Piercing Body Jewelry TOOL HARD MATERIAL: The sponge holder is made of SUS-304 stainless steel, very rust resistant and can take relatively heavier weight. MORE SANITARY: Open and hollow bottom design allows water to drain fast, thus the sink rack can keep your utensils away from dirty water in the pool and prevent bacterial from growing. HIGH PRACTICABILITY: Hook design ensures simple installation, fast removal and easy to cleaning. You can reassemble it wherever you like to save more space. GREAT KITCHEN HELPER: Perfect to hold sponge, soap, brush, towel, pretty handy when you washing dishes. WELL-ORGANIZED: The sink caddy will keep your sink and counter more organized. You dont have to find the sponge or other kitchen tools in a rush.