The race is on to build hands-on coding skills! Build your maze and then use the coding cards to create a step-by-step path for Colby, the programmable robot mouse. Includes Colby, 30 double-sided coding cards, 10 double-sided activity cards, cheese wedge and activity guide to provide the perfect hands-on introduction to coding concepts. Create your path with 16 maze grids, 22 maze walls and 3 tunnels. Colby measures 10cm long and requires 3 "AAA" batteries (not included).