Size: Measures 2mm x 2mm, the most popular size suitable for almost all your single strand projects.. Type: Tube Crimp Quantity: 400 pieces per package Made in China Crimp beads are small, cylindrical beads used in jewelry making to secure beading wire or thread in place. They work by being placed onto the wire or thread and then compressed using crimping pliers, which flatten the bead and pinch it tightly against the wire. This creates a secure hold that prevents beads from sliding or shifting, making crimp beads essential for creating professional-looking, durable jewelry designs. Crimp beads come in various sizes and finishes, allowing for versatility in both function and style. They are often used in combination with crimp covers to create a polished and finished look.