Trollbeads offers many clasps from which to choose just the right one for your Trollbeads bracelet or necklace. Designed with a user friendly larger lock on one end (for you to clasp onto the larger link of your chain) and with the smaller lock at the other end of the clasp (to have the ability to add or remove your beads when you want). Some clasps (like the Flower Pearl) are one piece units and some of them are made with two pieces with a link attaching the larger clasp to the smaller one. The Fish Clasp and the Flower Clasp both have the 2 separate pieces and are roughly 1-2 cm longer than the one piece clasps. Keep this in mind when deciding on the length of your chain. I recommend the Safety Chain for any Trollbeads bracelet if you lead an active life. The Safety Chain is a good addition for the security of your bracelet and for your piece of mind.