Made of top quality brass You will receive approximately 100 crimps per pack Uses: necklace making, bracelet making, and other types of jewelry making The Bead Chest Advantage: Over 10 million+ beads sold, and 50,000+ customers who have joined us in our mission to support fair trade artisans throughout the world! Confidence Promise: Our beads are the highest quality on the market. We are confident you’ll love your beads! If for any reason you are not satisfied with any products from The Bead Chest, please contact us immediately and our incredible support staff will do their best to put a smile on your face :)