【Expansion Pack for More Fun】Includes 2 rechargeable electric trains with light compatible with Goody King electric train sets, perfect for families adding more cars for interactive play. !!!DO NOT FIT WITH MAGNETIC TRACKS 【Smooth & Steady Driving】Each train runs smoothly across climbs, bridges, and loops, enhancing creative play and adding more fun to flexible race track adventures 【Compatible Expansion Accessory】Specifically designed for Goody King Electric Train Set. Works only on Goody King flexible tracks; trains can’t run alone without the track system 【Durable & Child-Safe Build】Made from BPA-free ABS with smooth edges, bright headlights, and sturdy wheels for long-lasting, safe racing fun for kids 【Easy Recharge, No Batteries】Recharge quickly with a Type-C cable. Turn the switch off while charging to ensure safe and efficient power-up Only for Goody King Electric Train Set, Not Fit with Magnetic Track, 2-Pack Replacement Electric Train Cars, USB Rechargeable Add-On Accessory for Kids Train Track Sets, Cannot Operate Independently