Based on this product's specifications, here are some alternatives and similar models
Shoulder Sling HMS TE1194, length 37 cm, model TE1194 by HMS
Summary description:
Shoulder sling HMS TE1194 is a supportive arm immobilizer with a 37 cm length designed to stabilize and support an injured arm or shoulder. It features an adjustable strap for over-shoulder wear and secures the forearm to reduce movement during recovery. Suitable for post-injury care, rehabilitation and daily immobilization when temporary support is required.