The rope bags feature a point-tear roll design, which can be easily torn off and slipped onto the trash bin. Once filled with waste, simply pull the rope to automatically retract the bag. Tighten the rope and tie the mouth securely. The rope runs smoothly around the entire mouth, distributes the force evenly, making it convenient to pull without soiling your hands, and prevents waste from spilling and affecting cleanliness. This is indeed a very user-friendly trash bag.