30 Pieces Metal Toggle Double Hole Cord Locks End Spring Stop Toggle Stoppers - Keep Your Cords And Strings Secured & Free Your LifeSteps:1. Just squeeze together, the rope lock can move up and down freely in any places.2. When released, the tension is contacted and the rope lock remains in place.3. It can be used to lock the rope to make the rope firm.4. Put the rope into the metal buckle and press down to extend or shorten the rope as needed.It is easy to install and use.Cord Locks Specifications:Color: GunmetalMaterial: MetalSize: 15 mm x 12mm x 9mm / 0.6 x 0.5 x 0.36 inches (length * height * hole diameter)Weight: 0.013lb/6g (per lock)Package Includes:30 Pcs Double-Hole Metal Cord LocksKindly Note:Beware of small parts of children from swallowing.- Due to the light and screen difference, the item's color may be slightly different from the pictures.- Please allow 1-3cm differences due to manual measurement.