- Material: SUS304 stainless steel. Sucker: ABS. Size: 128×105×30 mm. - Durable ABS resin bottom and SUS304 Stainless Steel provides long lasting quality. - Saving space and keep soap in order, suitable for bathroom and washroom and kitchen. - Super strong suction power. Single one sucker can bear 6KG weight for about 1 year. - This suction hook easily attaches onto compatible surfaces without using tools or glue. - The red ring on the button gives reminder that the suction cup tends to fall off. - Suction works on ceramic tile, glass, mirror, granite, stainless steel, acrylic, laminate and any non-porous surface with glossy finish. - Suction does NOT work on marble, sanded tile, porcelain, stone, dry painted wall, wood and any surface that is porous, bumpy, coarse, textured or matte finished