InterMountain N 60053 12-pk 33" Brass Insulated Wheelsets for Micro-Trains Trucks Axle Length: 0.537"

Same as Micro-Trains 003 12 020

N 33" Metal Wheels (12-axle pack) (403)  
Manufactured to NMRA RP25 standards
Detailed on both sides of the wheels
Plastic axle for scale appearance --overall length of axle is .53 inches
Wheels are chemically blackened
Designed to fit all MTL Trucks
Pre-assembled and easy to convert cars