2 pair O Scale New Generation AAR Type "E" Couplers, "Prototype" Head Short Centerset Shank Metal Coupler with Plastic Short Draft Gear Box (#806 type)
• Simple Drop in Design.
• Trouble Free Operation.
• Hidden Knuckle Spring.
• AAR Type “E” Coupler Style.
• Compatible with Kadee® O-Scale Couplers.