Ergonomic folding mechanism is easy to reach from sitting position. Comfortably shaped paddles "pop up" when walker is opened. Nylon paddles resist cracking or shattering. Patented anti-rattle silencers provide quieter operation. Folds easily to 4" deep for transport or storage. Weight capacity: 300 lbs. Lifetime limited warranty. Height 5 3" to 6 4"