Check the listing for details. 30PCS Metal Cord Locks for Drawstrings, Spring Cord Lock Stopper, Black Tone. Condition: New. Listed at 16.57 USD. The spring cord locks are used to replace damaged ones or for DIY projects, outdoor camping, widely used for drawstrings, clothing, backpacks, sports wear, shoelaces, shoe bags, tents, and more. Toggles are good for drawstrings and are colorful attachments for bag and clothing hardware.SpecificationMaterial: AlloyHole Diameter: 4.5mm / 0.18 inchOverall Size: 9 x 24mm / 0.35x0.95 inch(D x H)AdvantageThe round cord stops are made of alloy material, light in weight, not easy to break. With electroplate surface treatment, no need to worry about rusting, can be used for a long time.The spring design of cord locks acts like a clamp that holds the cord tight so it won't slip out. These are nice sturdy toggles with a good spring action.InstructionEasy to use: Just thread the rope through and adjust to the desired position.