Clothes elastic waist drawstring clip: Multi purpose drawstring clip for clothing. Can be used as rope buckle, as a buckle, or as an adjustable buckle. Plastic cord locks are compatible with this clip. Plastic spring cord locks: Cord locks suitable for different drawstrings and cords, including parachute fasteners. Shoelace repair clip: Made of durable material; very sturdy and durable as a drawstring stopper clip. Drawstring stoppers clip: The cord lock is used to lock cords for convenience and easy use; functions as an adjuster cable button. Usage scenarios - Use on clothing with elastic waistbands to securely tighten or loosen the fit and prevent drawstrings from slipping. - Use to tighten or repair shoelaces on sneakers or boots; can serve as a stopper to replace worn shoelace ends. - Use on backpacks, hoodies, tents, or bags to secure drawstrings; can act as a parachute fastener or outdoor gear cord lock for quick adjustments.