Build a world of city adventure! Easy-click bricks, sticks, and panels let kids build and rebuild their own police station lock-ups, with double-sided snap-in picture panels that let kids choose and change their city adventures. Police figure snaps on to the bricks, and can "drive" the police car that kids build themselves. Includes 37 pieces. All pieces in the TRIO Building System work together. Collect them all and build a world of fun! Ages 4 - 7 years