Forklift Tow Ball & Pin Coupling Attachment - Single Fork. Designed to be used for. Trailers, Compressors and Generators around the yard using a. 50mm Tow ball & Pin Coupling. Mounts onto the fork of the truck and secured in place behind the heel of the fork with a heel pin.Finished with two coats of heavy duty paint for durability. Manufactured with 120 x 60 x 3.6mm Box Section. Max Fork Size: 110 x 50mm. Max Fork Length: 1250mm (point to back of heel). OUR PRICE INCLUDES VAT, A VAT INVOICE WILL BE ISSUED ON COMPLETION OF SALE. CARRIAGE CHARGE TO MAINLAND ENGLAND & WALES ONLY.