Flexi-Felt’s sled chair floor protectors were tested under conditions simulating the chair movements of a typical school day, with a 182kg person for five years. The glides were still in great shape, even after rigorous wear and tear. When simulated with a 72kg student, the Flexi-Felt Glides outlasted other floor protection products 15 to 1. After 10 years of wear and 200,000 transitions, the Flexi-Felt sled chair floor protectors are still performing like they did on day 1!