Beadalon Lobster Clasps are a jewelry industry standard. Shaped somewhat like a "lobster's claw" they offer a sturdy hold that won't open without the reliable spring loaded pincer being pulled back. Use Beadalon Lobster Clasps with tags, jump rings, and split rings for dependable jewelry projects that require more than spring rings. Loop Crimp Set 1 mm Silver 10 pc- Insert your stringing material, add a drop of glue, then use the tips of the pliers to flatten the smooth middle section between the rounded spaces of the loop crimp. Do not use the notches on the pliers. Fits cording up to 1.0 mm.