Features： COMFORTABLE ENVIRONMENT: Fish can grow in a clean fish for tank. EASY TO USE: Just move the outside and the inside will be clean. EFFECTIVELY: Effectively clean the algaes in the aquarium without fear of soiling the hands. for PROTECTION FISH TANK: Soft wiping surface is not afraid of scratching fish for tank. STABLE: Powerful suction adsorption is not afraid of falling, it is easier to clean the fish for tank. Specifications: Material: Plastic Color: Blue/Red/White/Black Size (Approx.): 30x30x25mm/1.18x1.18x0.98in Suitable for Glass Thickness: 3-6mm/0.12-0.24in Weight: Approx.50g Note: 1.Please allow 0-1cm error due to manual measurement. pls make sure you do not mind before you bid. 2.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Includes: 1 Piece Magnetic Algaes Scraper (Blue/Red/White/Black)