Superior Veterinarian Grade Product - Picks up 38% more lint and hair than 3M, according to an independent testing lab. 40 years of perfecting a proprietary formula ensures no transfer of adhesive to clothing. Patented Zip Strip system ensures easy release of each layer. Two-piece, patented, non-friction, rotating head provides ease of use on any surface. Sets and adheres to industry standard size refills. Over 100 million standard size rollers in consumer's hands. Tape substrate is biodegradable.