CanDo Back Stretcher is designed to mimic the natural curve of the spine. This design is used to correct posture and stretch your back muscles. Simply recline on the CanDo Back Stretcher so that the spine aligns with the indent in the middle of the back stretcher. Lie on the back stretcher for five-minute intervals as it supports the back and muscles. Regular use of the CanDo Back Stretcher can improve posture and relieve any discomforts caused by poor posture, including: muscle spasms, headaches, and muscle tension.