The durable casing and belt braking technology for slow belt retraction ensure these wall mounts are suitable for day to day use in even tough industrial environments.Retractable Belt Barrier Black Fixed Wall Mount 7. This retractable belt barrier with durable ABS protective case mounts directly to the wall or fastens to posts with various mounting styles.5'Lt BrwnBelt (F) Yellow cases and a wide variety of belt colors and messaging are available for safety plans requiring high visibility or specific safety messages.