The just be... Back Support is a 2-in-1 back rest that aids seated posture and helps to relieve lower back pain. It has a lightwieght, compact but durable frame with an adjustable arch and a foam cushion, making it perfect to use in the office or at home. It also features a detachable chair strap and a removeable washable cover. The just be... Back Support can be used as part of your floor exercise routine to help relieve muscle tension and back pain. 3 positions allow more difficult exercise