DOBPLAST rope hook for the side wall of a trailer, hook for tarpaulin attachment The DOBPLAST rope hook for the side wall of a trailer is a simple but functional accessory that is used to attach tarpaulin ropes to the side wall. The hook is mounted directly on the side wall and allows the attachment or fixing of expander, rubber or tarpaulin ropes for securing cover sheets and cargo. This accessory is typically made of robust metal or plastic and is suitable for retrofitting or repairing existing attachment points on trailers.