12 ~ Dolphin Key Chains Keychains ~ Approx. 3.25" Incl. Keychain ~ Plastic Dolphin Fob ~ New 12 ~ Plastic dolphin keychains ~ New. 1.5 inch transparent plastic dolphins with a 2 inch key chain and ring attached. Total length approximately 3 1/4 inch. Warning: Chocking Hazard - Not for children under 3 years.