Tamiya RC Motorized Support Legs for 1:14 Scale Truck Kits
Everything you need (minus servo) to allow you to drop the legs and unhook your trailer by a 4 channel radio (sold seperately). Retractable leg motors run on 4 AA batteries(sold seperately) you mount under trailer. Simple installation that can be added to any of the Tamiya 1:14 scale trucks at anytime