Active Collection FFS-1000-BK Mobis Stand-up Leaning Seat , Matte Black Active seating supports leaning posture that encourages a hip-to-torso range of 130 to 135 degrees Non-slip, easy-to-clean seat cushion may help to reduce pressure points, built-in handle for easy portability Easy-adjust handles to lift and lower the seat, pivoting seat leg on ellipse base with non-slip rim Seat is height adjustable from 25" to 35"H, rated up to 300 lbs. Pair with the Stabilizing Foot Rest Model FFR-1000 (sold separately).