CA-4
CA-5
CA-4
CA-5
These CA-X style cabooses were originally tooled by Golden West Models and sold as kits in the late 1990's. The tooling for said kits was subsequently sold to Des Plaines Hobbies (aka Centralia Car Shops), who then manufactured, assembled and painted these models for Intermountain.
The Golden West kits were not trivial and required some quality assembly skills. Unfortunately, Centralia apparently wasn't quite up to the task. Although very nice looking, these things will start shedding parts if you breath on them too hard - the trucks, couplers and step-ladders being especially prone to "fall apart" syndrome.
The wheels are plastic and the couplers are body-mounted Micro-Trains.