Quick Hitch Category #1 Pat's Easy Change Includes: Stabilizer bar, 3 sets of lynch pin washers. Category #1 on the tractor and Category #1 on the implement. Hole and Pin size are 7/8". Best quick hitch hands down, for your 3 point hitch needs. Changes lift arms from a standard ball hitch to a hook system while leaving 3-pt. hitch flexible to use on all implements, including those not compatible with quick-hitch systems. Allows you to attach heavy implements without lifting. Pat's Hitches work with any width implement. The adjustable stabilizer bar holds the lift arms at any width during hook up. They work with the extendable lift arms as well. Made in the USA of cast iron. Powder coat finish. 30 day money back guarantee. Easy installation and removal. No changes are necessary for the tractor or implements. Everything needed to install on a tractor is included in a set.