The WED-20 Treadwell Droid is a specialized survey and analysis droid. It is designed conservatively with a base tread system, a thin cylindrical core, as well as seven small pincer-like arms capable of collecting samples, and an advanced photoreceptor on its "head" with image and video recording capabilities. At its base, it has a micro lab where it can perform analysis of collecting samples and transmit information. It was designed and used as a scout during first-contact planetary analysis by corporations.