Simple cuff and collar design comfortably holds weight of arm without a lot of bulk. Adjustable elastic band with hook-and-loop closure fits wrist circumference of 6″-10″. Heavyweight 1″W webbing shoulder strap has a soft pad for comfort and metal slide buckle for easy adjustment. Poly-cotton. Fits left or right arm. White. Sizing:Â One size fits wrist circumference 6″-10″