Loosen your shoulder blades for relaxed, refreshed shoulders! Supervised by a shoulder blade specialist. Replicates the techniques of a chiropractor, gently swaying to apply pressure to your back, which you can't reach yourself. Features 18 protrusions to apply pressure to the shoulder blades and surrounding muscles, and a specially designed curved shape to support the back. Swaying from side to side, it powerfully loosens areas you can't reach, using your body weight. The reverse side allows you to gently open your chest and stretch your back, perfect for relaxation. 【Material】 Polyurethane 【Weight】 1120g Thank you for viewing.