With its 17'' x 4'' saddle-style cushioned top, the T675 is all about comfort. The sloped leg openings of the biomechanically shaped seat provide a free range of motion while the raised center and back edge help the player to maintain balance. Like the 570, the wide double-braced tripod base make it stable while the steel height adjustment tube with memory lock make it durable and secure enough for anyone. Feature: The sloped leg openings of biomechanically shaped seat provide a free range of motion while the raised center and back edge help the player to maintain balance.