Hydraulic cylinders [ and accessories therefor, namely, stroke controls attached to the hydraulic cylinder to control the travel of the piston of the hydraulic cylinder; ] [ pin kits primarily comprised of pins and retainer clips used in hydraulic cylinders; repair kits primarily comprised of rings and gaskets for repairing hydraulic cylinders; ] [ hydraulic cylinder parts, namely, breather vents, ports, adapters and fittings in the nature of hydraulic line connectors for attaching hydraulic lines to hydraulic cylinders and filters for filtering hydraulic fluid ]