Our Thomas the Tank Engine Whistles feature 3 different designs; the cheeky, little engine, Thomas, the happy-go-lucky mail deliverer, Percy, and the fire red chugger, James. Whistle colors come in blue, green and red, each with a hole to make into a necklace if desired. Give these away as party favors and prizes to all the little chuggers at your celebration! Package include 12 plastic Thomas the Tank Engine Whistles measuring 3in x 1 5/8in.