Value Pack: package includes 30 sets pink barrel black break away safety clasps with 1 roll of round nylon braided string cords; can meet your different needs in daily life, suitable for jewelry making and DIY craft projects. Easy to Use: these DIY breakaway clasps are easy to use, you only need to insert the rope less than 2.5mm to be connected into the button and then close the button, easy to close and open, without complex steps when in use. Barrel Shape Clasps: the plastic clasps are about 24mm(0.94") in length, 9mm(0.35") in width, hole 2.5mm; perfect hole size for less 2.5mm cords. The nylon cord is 2mm in diameter, 10.9 yards(10m) in length. Plastic Material: the clasps are made of plastic, simple, cute, lightweight and durable, solid interface is not easy to break, small parts; romantic pink, they are suitable for most types of clothes. Wide Usage: perfect for lock design that connects necklace, bracelet, bubble gum necklaces, lanyards, keychains, strap lanyard and other accessories; can be used for bags, clothing, shoes, bags, lanyards, keychains, etc.