CURT 16560 - 16K ROLLER ASSEMBLY16K ROLLER ASSEMBLY Allows For Forward And Rearward Movement Of 5Th Wheel Hitch For Use W The Curt A16 5Th Wheel Hitch Head #16520 Or E16 #16515 Ideal For Towing Trailers W Large Overhangs Up To 16000 Lbs. Constructed W Solid Rods That Lock The Hitch Into Position Designed To Be A True Rolling Unit Not Just A Slider 12 In. Of Travel While Most Competitive Models Only Offer 10 In. Uses Wheels To Bear The Weight Instead Of Hollow Rods Protected By A