Check the listing for details. 30pcs Plastic Spring Cord Locks Double Hole Elastic Cord Adjuster Clear. Condition: New. Listed at 15.75 USD. The cord locks for drawstrings are made of nylon, which has good wear resistance, is not easy to deform, and has a long service life. Compared with other materials, it is lighter and more convenient to carry. It has a certain waterproof performance and is not easily affected by moisture even in a humid environment.The spring-loaded design provides appropriate elastic support, making it easier to adjust the length when stretching or contracting the rope. The tightly locked spring structure ensures that the spring will not detach during use and maintains a certain level of stability. The simple and modern design style showcases a clean and elegant aesthetic.The spring toggle stop slider is suitable for adjusting various different types of ropes. Suitable for clothing, backpacks, shoes, tents, hats, DIY handmade, and other purposes.