Check the listing for details. Kadee HO Scale #505 ~ Coupler Conversion Bolsters for 6 Wheel Passenger Trucks. Condition: New. Listed at 5.00 USD. Kadee Quality Products Co. HO Scale No. 505 Coupler Conversion BolstersFor 6 Wheel Passenger Trucks New in Package Passenger cars can be equipped with truck mounted couplers using the correct conversion bolster attachment. Truck mounted couplers permit closer coupling on radii down to 18" without causing binding for most passenger cars. Non-Magnetic trucks should be used with Kadee® Magne-Matic® Couplers. Wheels should be changed on AHM and Athearn trucks. Use Kadee® #521 or #522 non-magnetic wheels. Each kit contains a pair of Draft Gear Boxes, one pair of # 5 couplers, #634 centering springs, screws, special bolsters and instructionsTool is New-Sealed from Kadee ! Model Railroading is Fun ! ---------------------------------------------------------------------- Payment and Shipping Information Email: Feel free to contact us with any questions via ebay messaging, we will respond asap. Combined shipping on multiple auctions. International Bidders : Global Airmail, please contact us for shipping rate, Bid with confidence, we specialize in International orders ! We will notify the high bidder by email just after the auction ends. Payment to be received within 10 days of auction close or item may be relisted for sale and eBay notified.