The M18 electric powered trailer dolly is a simple and inexpensive tow tug.
Battery Electric Tug / Caravan Mover | Alitrak TT900-Plus for sale from Spacepac Industries - MedicalSearch Australia
The All-New Force Electric Trailer Dolly with Intelligent Speed Control™ (ISC), Newton Abbot, Devon | 1-RV
Electric Trailer Mover 450kg Load Capacity Trailer Dolly with Remote Control, Motorised Camper Trolley Kit, Camper RV Caravan Boat Trailer Jack for All Terrain A : Amazon.co.uk: Automotive
TRAILER MOVER PLANS- 12V HEAVY DUTY Version, Dolly in eBay Motors, Parts & Accessories, Manuals & Literature | eBay: | Trailer dolly, Caravan mover, Trailer
VEVOR Manual Trailer Dolly, 10000 lb Load Capacity Trailer Mover Valet with 2-5/16 in Ball & 10.63" Wheels, Adjustable Height Heavy-Duty Jack Tug for ...