Exost loop gravity racing set is "build & race without limit" Set. You can challenge the gravity with the vehicle's speed. The vehicle rechargeable ( 1 included) is remote controlled ( 1 included). vehicle's maximum speed is 8 km/h. The controller has backward, forward, & boost function: 5S high speed. There are 31 tubes included to give you maximum creative satisfaction. 5 challenges: 2 loops, 1vertical zone, 1 jump zone, 1 overtake. The car has led light which gives an excellent lighting effect while it is on the move. Play time is over 10 minutes. Requires 2Xaaa batteries for the remote ( not included). 1 recharging cable included. Instruction guide included.