Package Include: pack of 30 cord lock, single hole elastic cord adjuster\r\n Single Hole Cord Lock Size: length: 1.05in/2.65cm, width: 0.55in/1.65cm, hole diameter: 0.32in/0.8cm\r\n High Quality: made in high quality POM plastic, durable and lightweight, not easy to break\r\n Firm Grip with Spring Loaded Design: these cord locks use a thicker and stronger spring loaded, provide you with a very firm grip and guaranteed to keep your cord tight and secure\r\n Widely Used: our cord locks end spring stopper adjuster are prefect for all kinds of drawstrings and different types of cords, such as shoelaces, backpack straps, trousers, hooded jackets, laundry bags, sportswear, etc.