A way to work for those who prefer a different way of sitting, Designed for short periods of time, the knee sit chair puts the back into a more natural position, Simple and popular, the Jobri ergonomic kneeling chair helps you to sit up straight by easing the hips forward, encouraging an upright posture, The F1420 is made for people who want break from traditional seating, and want some temporary relief on their back, Featuring Supportive polyurethane foam on the Seat and knee cushion!, Black steel frame, Nylon casters, Manual height adjustment, Polyurethane foam covered with durable fabric, Knee cushion size: 6, 5""W x 11""L, Seat: 17""W x 12, 25""D x 2, 5""T, Seat Travel: Yes, Knee Pads: 6, 5""W x 10, 5""H x 2, 5""T, Overall Max: 20, 5""H x 17""W x 25, 25""D, Weight Capacity: 280 lbs, SKU: JBR186