The kit is a 1/35 model of a USA Kellogg Air Compressor used during and after WWII. The kit makes a nicely detailed little accessory for dioramas or vehicles. This kit is from Mirror Models, Ltd. Of Ireland, who produce plastic model kits and accessories.
The compressor kit contains two full models in the package, and comes on two sprues of taupe or a gray/tan plastic. The plastic seems a little soft. Many of the parts are quite small and have very fine detail, such as the pulleys and drive belt, part K15. Some of the parts have fairly large sprue connections that require care removing them from the sprue and need some extra cleanup. The sprue connectors seem large but the actual connection points are fairly thin.