Perfect for your steel mill model. Cobble together some proper blocking and take it for a spin around your layout. We can't tell if it's part of a crankshaft of a container ship, flywheel for a moon rocket, clutch for some huge piece of machinery or ??? One thing's certain, it'll be fun to finish this out in a metallic paint job and roll it out of your steel mill to your customer's factory site or shipyard.
Other items in photo shown for size comparison and are not included.
Scale model is for display and operating model railroad load / modelling and is not a child's toy.
For use by railroad modelers age 14 years minimum.