The bracelet is made out of 18 karat yellow gold, featuring box link with lock and keys charms. The key charm is removable. Measurements: the bracelet is 7- 1/2″ long and 3/8″ wide, the lock is 1″ x 9/16″, the keys are 3/4″ x 3/8″. Total weight is 95.8 grams.