The ultimate magnetic aquarium glass scraper  Use this tool the keep your aquarium glass super clean without putting your hands in the tank. The patented magnetic 2 in 1 magnetic glass cleaner can quickly flip from scrubber to scraper simple by rotating the handle. The super slim profile also ensure you can easily clean glass without moving any rock work inside your all in one aquarium. Work with all reef casa aquariums and aquarium to up 1/4'' thick glass thickens Replace blades every 3 months to keep glass looking clean and avoid scratching  Dimensions: 3"L x 1.5"W x .5"H You can find the replacement blades here 

Replacement Stainless Steel blades for the Flipper Nano. Stainless steel blades for for glass aquariums only. Includes 2 Replacements blades We recommend changing every 3 months