The Mastermind Circle is a fun, treat-dispensing toy that takes practice for birds to perfect. The clear “treat thimbles” with easy-grab pegs allow birds to locate and transport the treats through the track so it reaches the top, releasing the reward. The Mastermind Heart is made from polycarbonate to withstand active daily play, and is easy to clean! Includes mounting attachments and disassembles fully for cleaning. Should you lose a treat thimble, we recommend buying our Replacement Treat Cones For Mastermind Circle.