EASY SIZING: Medium -18-28 cm. Large- >28 cm. Please measure your forearm length and see image. LIGHTWEIGHT AND COMFORTABLE: Lightweight design for comfort with a padded neck piece to make wearing this sling as comfortable as possible. EASY TO FIT WITH ONE HAND: The simple design with two separate triangle bandages for support provides a more customised fit for collar and cuff support and can be easily put on or removed with one arm. Can be used on the right or left arm. REDUCES PAIN AND DISCOMFORT: Provides support and comfort following injuries to the arm or shoulder. The strap is adjustable and has a moveable padded neck piece for added comfort. IDEAL FOR IMMOBILISING YOUR ARM FOLLOWING INJURY: The Actesso web arm sling is ideal for stabilising the arm, wrist or hand and can be used to support casts.