Is this immobiliser suitable for both the right and left arm, and how do I put it on correctly? — Fixing hand holder size 612-1

Yes, according to the manufacturer's description, the Desault-type upper-limb immobiliser suits both the right and the left arm — there is no need to buy a separate “right” or “left” version. The set includes three parts: a bandage, a forearm sleeve and a belt that adjusts the fixation of the upper limb. The product is made of breathable fabric (composition — 100 % polyester).

According to the manufacturer's instructions, the immobiliser is put on directly over the body or over clothing. The product card gives no step-by-step fitting scheme; if the immobiliser was prescribed by a doctor, ask them for the exact position of the arm and the tension for your injury or operation: they may differ.