Walthers Proto 920-6002 HO Scale Proto MAX(TM) Magnetic Knuckle Couplers Standard Type - 20 Pair
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Fully assembled, they fit most HO equipment, and each realistic coupler features a tough die-cast metal head and shank, factory-installed metal knuckle spring, and a separate metal centering spring. This bulk pack is perfect for upgrading your entire fleet! Includes couplers and centering springs only.