This is a description taken from LEGO.com. Do not modify it.
Grab ‘em, load ‘em, and haul ‘em away with the power of pneumatics!
No logging job is too big for this impressive log loader! Use the control knob to steer the tractor to the trailer, then hitch them up! Take control of two pneumatic-like valves to operate the fully-articulated crane arm and pick up the log with the working grabber. Realistic and functional! 2-in-1 model rebuilds into a rugged log handler vehicle.
Features tractor with steering and log loader trailer that can be unhitched from the tractor!
Log loader features two pneumatic-like valves that control the articulated crane arm!
Add compressor function by purchasing 8293 LEGO® Power Functions Motor Set!