Product Dimensions:2 x 2 x 2 cm; 100 Grams Quantity:1 batteries required:No Item Weight:100 g Welcome to my store , Hope you have a pleasant shopping trip! Features:1.Strong magnetic suction, strong adsorption and not easy to fall off, fast algae removal, comprehensive cleaning of stubborn algae, dirt, mist, water stains, ash on the surface of the tank, etc.2.Quick cleaning. Both sides of the inner and outer walls of the fish tank are cleaned at the same time. Specifications:Material: nylonSize: diameter about 2.9cm/1.14"Package List:1 X Magnetic Aquarium Algae Scraper2 Pcs X Replacement Cloth for Outer Brush2 Pcs X Replacement Cloth for Inner BrushNotice:1. It is not recommended to use acrylic fish tank.2. Keep away from watches, magnetic cards, electronic equipment, and medical equipment. Patients with pacemakers and heart stents should not use it.3. The correct way to open: rotate 90 and then break apart, do not get too close after separation, so as not to pinch your fingers. The Inner Brush Is Made of Tough Nylon, Cleans the Garbage and Algae on the Inner Wall of the Fish Tank. The Outer Brush Is Soft Felt Cloth to Clean the Water Stains and Dust on the Surface of the Fish Tank, Which Is Not Easy to Scratch the Glass Surface of the Fish Tank, Not Hurt the Glass of the Fish Tank The Appearance Is Simple and Exquisite, the High-transparency Shell Is Crystal Clear, Small and Easy to Hold, Easy to Use, and the Surface of the Tank Can Be Easily Changed At 90, Suitable For Both Freshwater and Seawater Fish Tanks Suitable For Small Mini Fish Tanks, Desktop Fish Tanks, and Micro Fish Tanks, the Thickness of the Fish Tank Wall Is Within 1cm/0.4 Inch (not Fit For Acrylic Fish Tank) Strong Magnetic Suction, Strong Adsorption and Not Easy to Fall Off, Fast Algae Removal, Comprehensive Cleaning of Stubborn Algae, Dirt, Mist, Water Stains, Ash on the Surface of the Tank, Etc. SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied. See more product details The Inner Brush Is Made of Tough Nylon, Cleans the Garbage and Algae on the Inner Wall of the Fish Tank. The Outer Brush Is Soft Felt Cloth to Clean the Water Stains and Dust on the Surface of the Fish Tank, Which Is Not Easy to Scratch the Glass Surface of the Fish Tank, Not Hurt the Glass of the Fish Tank The Appearance Is Simple and Exquisite, the High-transparency Shell Is Crystal Clear, Small and Easy to Hold, Easy to Use, and the Surface of the Tank Can Be Easily Changed At 90, Suitable For Both Freshwater and Seawater Fish Tanks Suitable For Small Mini Fish Tanks, Desktop Fish Tanks, and Micro Fish Tanks, the Thickness of the Fish Tank Wall Is Within 1cm/0.4 Inch (not Fit For Acrylic Fish Tank) Strong Magnetic Suction, Strong Adsorption and Not Easy to Fall Off, Fast Algae Removal, Comprehensive Cleaning of Stubborn Algae, Dirt, Mist, Water Stains, Ash on the Surface of the Tank, Etc. SHOP WITH CONFIDENCE: To Provide You With the Highest Quality Service, If You Have Any Question, Please Feel Free to Contact Us.We Will Provide After-sales Service Until You Are Satisfied.