If you look at the charm to the left, it is from a competitor of Giorgio Martello Lucky Charms and uses a standard traditional trigger fastener to hold the charm on the bracelet, this style of fastening is usually found on necklaces. You will see that the fastener
competitors charm  has a small piece protruding in order to operate the catch, this piece is both unsightly and catches when being worn

Lucky Charms from Giorgio Martello are fitted with a unique spring loaded design that does not have the thumb piece. When worn you are not able to tell that the Lucky charms are removable, you will not risk catching the thumb piece and snagging clothes or worse losing the charm. In addition all Giorgio Martello charms, bracelets & jewellery are
A Lucky Charm        solid sterling silver and rhodium plated (this is the same process used on white gold) giving the charm & bracelet an extremely bright, white, lusterous and hard wearing finish, ensuring the charm will give years of enjoyment

Thanks to this unique fastener your Lucky Charm will look as fantastic on your bracelet or equally at home worn as a pendant on the specially designed  "carrier" necklaces or earrings, or simply pop your charm onto a plain silver chain, fabric or leather cord or pin brooch, the possibilitys are only limited by your imagination.
Your silver charm bracelet will become your favourite piece of jewellery.