This 10 SCA Jockey Wheel is great replacement part for the front of your trailer. This wheel is used to help guide the trailer into proper positioning over the vehicle's tow ball before connecting the two and can also be used to move the trailer when not connected. The pneumatic tyre is very strong and prepared for heavy duty loads, owning a weight capacity of up to 360kg.
How easy is it to use?
This jockey wheel has an adjustable height that ranges from 690mm to 950mm and is manually adjusted with the attached screw jack. Installing the wheel is easy but may require the additional purchase of a mounting plate, if there are no fixtures currently on the trailer to be used. SCA has a useful instructional video and directions available here: http://www.supercheapauto.com.au/how-to/Trailer-Towing/Fitting-a-Trailer-Jockey-Wheel.aspx?id=128 .