Shoulder Posture Aid And Clavicle Support How To Use: Bring The Hook And Loop Strap Through The Plasticring To Form A Loop On Each Side. Slip The Arm Through The Loop. Keeping The Straps In The Back. With Padded Loops Over The Shoulders, Pull Both Straps To The Front. Fasten Straps Snugly. Ingredients: It Made Of Laminated Sponge Fabric