5 years & up. The 3-in-1 PowerClix® Bluetooth® Construction Vehicles Set features unique magnetic snap-on pieces to build a sturdy front loader, dump truck, bulldozer, or any other vehicle you can imagine for open-ended play. The fully-articulating wheels and axels and streamlined parts make it easy to build and alter each vehicle. Connect to the powerclix app via Bluetooth® to steer builds from tablet or smartphone with the motorized, app-enabled piece. App is available on the App Store and Google Play. Compatible with other PowerClix® building systems. Set includes 55 pieces.