Definately the most smallest commercial production R/C Rock Crawler on the market and in the world in the early 2011 which i quickly grab off the shelf and one of the most unique from YOKOMO brand Japan. Its MOA (Motor On Axle) configuration, semi-proportional steering and controlled via infra-red. Has great traction on the tyres, highly articulated axle movement and climbs almost everything for a palm size model. Its also a great platform for scale DIY crawler models since its wheels base width can be of any size because of MOA axle which makes it easie for miniature chassis customization. Slowly i've upograded with quality hobby grade electronics, servo and others to make it worthy. Today the NanoQLO is a rare model since it was short lived in the market and no longer in the production. I'm really glad to own this tiny R/C engineering marvel.