Feature: 1. Ergonomic Design: The mini aquarium glass cleaner has an ergonomic design with non slip grooves to fit the hand and reduce resistance to dislodging. 2. Unique Design: The aquarium magnetic brush has an anti scratch hook and loop fasteners design with small hooks that catch stains on the tank wall for a more bottom cutting clean without scratching the tank. 3. Soft Plush Brush: The magnetic glass cleaner has a soft suede brush on the outside, which makes it easier to clean and wipe the outside glass of the fish tank without leaving marks. 4. Effective Cleaning: Magnetic algae scraper easily removes all signs of stains, hair algae, spotted algae, brown algae, green algae, etc. 5. Safe Material: Aquarium glass cleaner is made of high quality plastic, non toxic and odourless, safe and environmentally friendly. Suitable for fish tanks with a thickness of 3mm/0.1in to 6mm/0.2in etc. Specification: Item Type: Magnetic Glass Cleaner Material: Plastic Use: Fish Tank Magnetic Brush Thickness of Fish Tank: 3-6mm/0.1-0.2in. Package List: 1 x Magnetic Glass Cleaner Note: 1. Pacemaker wearers are forbidden to approach and place out of the reach of children.2. Do not use this product in acrylic, plastic, crystal or super white fish tanks.