Press the lock rope, thread the rope through the two holes of the rope lock the cord lock can move freely up and down Adjust the rope lock to the proper position. Widely used for shoelaces, pack drawstrings, pants closures, paracord products etc. Features - Color: Black, golden, silver - Material: Alloy - Size: 2.30X0.80X0.80cm/0.90X0.31X0.31inch - It can be easily attached to backpacks, sportswear, masks, hop-pocket, shoelace etc. - When released, tension is engaged and the cord lock stays in place. - They are great replacement choice for old or broken cord buckle lock. - This spring cord lock set can meet your diversified needs for different usages and allow you to match different accessories. - Widely used for lanyard, luggage, clothing, backpack, sportswear, shoelace, tent, pants, coat, and more. Package list: 30 x cord locks