Blue treat dispenser. Comes with all the bolts, washers and wing nuts to attach to the side of the cage. 5 sections to fill and then they have to move the clear cover around until they get to the section they want. Most rats find this pretty easy to learn and enjoy it a lot.
The washer in the middle will come as a random colour, if you prefer a particular colour add it in the notes and I will change it to suit.