These miniatures are in 6mm scale and have been designed by Markus Kruse at Terrain4Print.
They are  compatible with Flames of Orion, Battletech and HardWar.
 
This set contains
3x Multipart Libra Mech walkers
( 3x legs in various poses and 3x torsos with weapon variations)
 
Libra (30 tonnes)
This design is quite old but still serves as a scout mech in many guard forces. It has very good mobility and top speed. The standard configuration comes with an excellent sensor suite as well as an ecm suite. As it has very little armor, even for it's size, it relies on stealth and mobility to survive.
 
They come in ABS Like resin.
 
Please note 3D printer resin is not like the Resin used to make injection moulded miniatures it is denser and there for can be a little more brittle.
 
This set is supplied un-painted and some clean up may be required.