_:n9583e535e6674dff98fb05ad3c15f517xb0
<http://schema.org/description>
"active sitting - ergonomic comfort - height adjustable\nStart sitting actively and get rid of chronic back pain!\nThe ball chair re-designed.\nThe only chair that facilitates movement front to back, side to side, AND Incorporates the principles of resistance-therapy bands for muscle stimulation\nOptional upgrades: Stow below air pump; color-matching ball-wrap \nMeasurement Specs\n\n18” x 18” sculpted seat\n15” wide sprung foam back rest for lumbar support\nWeight limit | 500 lbs\nHeight range: 4’10” to 6&#39;4&quot;\n\nThe Materials\n\n18mm Eames-grade Baltic birch hardwood multi-veneer plywood\nMarine-grade abrasion resistant natural rubber bungee cord\n1,000 lb capacity burst resistant PVC exercise ball\nStretch-nylon high GSM performance fabric upholstery (black, red, gray)\nUltra-durable linen-textured stain resistant polypropylene fabric (charcoal, teal, green)\nReinforced nylon matte black 5-star base\n\n\nThe Hardware\n\nHand-adjustable bungee tensioners for more or less movement and stability\nAbrasion-resistant nylon wrapped natural rubber bungee, with custom wood bungee ball-ends for ease of grip\nModern polished aluminum quick-release cam-levers to unlock &amp;amp; adjust back supports\nAdjustable back support for lumbar support and self-massage or total freedom of movement.\n1 premium locking caster to keep you safe while moving in your chair\nSculpted 3-layer high density foam seat cushion for ideal weight distribution to keep pressure off the ischial tuberosities\nCushion features coccyx cut-out to keep pressure off the tailbone when moving front to back.\nUpholstered in heavy-weight performance fabric to minimize friction and facilitate movement.\nUltra high density 30cm PVC exercise ball\nOptional -- Matching fabric ball-wrap protects ball &amp;amp; dresses it up for the office\n\nClick Add To Cart and get yours today!\nAll prices are in USD and all taxes, duties and VAT are the responsibility of the receiver"
<https://sprangchair.com/collections/shop-sprang/products/sprang-chair-2-0-most-popular-citron-green-linen>