Crimp covers. These curved covers slip over your crimps after you have secured them; squeeze them gently shut with the outer curved notch in your crimp pliers, taking care to align the ends. Could also be used to take up the slack in a necklace with a big gap. The final result looks like a bead. Nickel free.
Lead-free. Nickel-free. 3mm x 3mm By the pack of 100.