Språng Chair 2.0 - backless stool

Start sitting actively and get rid of chronic back pain! The ball chair re-designed. The only chair that facilitates movement front to back, side to side, AND Incorporates the principles of resistance-therapy bands for muscle stimulation The backless stool is our most affordable option.  Measurement Specs 18” x 18” sculpted seat 15” wide sprung foam back rest for lumbar support Weight limit | 500 lbs Height range: 4’10” to 6'4" The Materials 18mm Eames-grade Baltic birch hardwood multi-veneer plywood Marine-grade abrasion resistant natural rubber bungee cord 1,000 lb capacity burst resistant PVC exercise ball Stretch-nylon high GSM performance fabric upholstery (black, red, gray) Ultra-durable linen-textured stain resistant polypropylene fabric (charcoal, teal, green) Black nylon 5-star base with locking caster.  The Hardware Hand-adjustable bungee tensioners for more or less movement and stability Abrasion-resistant nylon wrapped natural rubber bungee, with custom wood bungee ba