If you race on plastic track with magnets don't even bother running your Slot.it cars with the stock magnet and tires. Put one of these in each car to begin with and upgrade to silicone tires. Between the two they transform the performance of your Slot.it cars. Works well with the HRS chassis.

Replaces the SICN04 racing magnet.

PLEASE NOTE: These small magnets are very powerful and can cause serious injury or death if swallowed - keep away from small children.