Attach clasp to ball chain

In this DIY tutorial we show them how to attach a clasp to a ball chain.
If you want to attach a clasp, such as a carabiner, to a ball chain, you need two calottes and binder rings.
The last ball of the ball chain is placed in the bulbous part of the calotte. The calotte is then pressed together with flat-nose pliers.
One calotte is attached to each end of the ball chain.
A binder ring is attached to each of the eyelets of the calottes and the carabiner. Now you have a ball chain with a clasp and you can open and close the chain.