Transgender Symbol Charm Keyring These transgender symbol charm keychains feature a transgender symbol charm that is of the female, male and Genderqueer symbols combined around a circle to represent people who are transgender. The silver horseshoe-style key chain has balls on the ends that unscrew to easily add your keys. These sterling silver-plated keychains have keyrings that are 1 1/2 inches in diameter, and the charms are 3/4 inch by 3/4 inch.