Arm binders are a type of restraint device commonly used in BDSM and fetish play to restrict the movement of a person's arms. These devices are typically made of leather, latex, or other materials and are designed to encase the arms and hands, limiting mobility and control over the arms. Arm binders often feature straps, buckles, or laces that can be adjusted to secure the arms in a folded or crossed position behind the back or in front of the body. Arm binders are popular in bondage scenes as they create a sense of helplessness, vulnerability, and submission for the wearer. They can be used in a variety of BDSM activities, including bondage play, dominance and submission dynamics, and sensory deprivation scenes.