"All's well that ends well, and this gorgeous fish is the perfect end to your Trollbead bracelet.
This is a longer double lock, which means the bracelet will be looser. If this is undesirable, choose a bracelet 1 cm shorter than you would otherwise wear.
Use of this lock for leather bracelets is possible, but not recommended."
This lock is what is commonly described in the community as a double jointed or double lock. These are very user friendly and make perfect locks for new collectors