This is an upgraded version of the standard SW-888. The plastic wheels have been upgraded to EVA rubber to give better grip on all surfaces. A great electric quad bike for children aged 3 to 8. It goes around 4km/h so great fun without being dangerous. The ATV is powered by a big 12V battery and two motors instead of the usual one to give a bit more push when using on grass. A normal ride on car or smaller quad bike can get stuck on grass or uneven surfaces but this bigger model with its bigger wheels and twin motors will perform better. This ride on quad bike is a high quality model with lots of features not found on the smaller cheaper ones. The quad can go both forward and reverse with a nice forward/reverse gear stick used to make the selection. You just select forward or reverse and then use the foot accelerator to go. The LED lights all work and there are cool engine and car noises that add to the excitement. There is also a feature entertainment unit with pre-recorded music built in or you can plug in your own device and listed to the music through the quad bikes speakers. The quad bike comes almost fully assembled with only very minor finishing bits needed before driving. An amazing gift for any little car lovers.