Package Contents: 6 x Single Hole Spring Cord Locks; 8mm Hole; Total Size: 28 x 12mm; Perfect for arts and crafts and your DIY projects. Spring Design: The spring provides a firm grip to prevent ropes or cords from slipping. The spring cord lock helps lock items such as bags, hoods, hats, etc., keeping the rope taut and secure without having to tie it. Easy to Use: The plastic hole cord lock helps lock the rope and tighten the drawstrings of bags and jackets. Easy to install. Ideal for sweatpants or hoodies, it prevents rope loss and allows for tightness. Durable Material - Made of PP, durable and lightweight, it is widely used for lanyards, luggage, clothing, backpacks, sportswear, shoelaces, tents, etc. Widely Used - Widely used for lanyards, lanyards, luggage, clothing, backpacks, sportswear, shoelaces, laundry bags, jackets, hats, storage bags, hammocks, tents, outdoor products, fitness products, etc.