Steelcase 46296179SL107 46296179S Office Chair, Black Leap Plus offers the same benefits, aesthetic appeal and functionality of Leap with support for users up to 500 lbs. Live Back technology that allows the back of the chair to mimic the movements of the spine Arms telescope in and out, move forward and back, pivot and adjust up and down so you can find a natural position that comfortably supports your needs Designed with the planet in mind and is up to 98% recyclable by weight and made of up to 30% recycled content Weight tested up to 500 pounds with no loss of performance