Robart 7/16" (11.1 mm) diameter RoboStruts are perfect replacement for weaker wire, stainless steel, and aluminum type struts. They are suitable for most airplanes weighing 12 to 18 pounds. With real functional oleos and torque links, that can be used on grass or paved airfields. Made from real aircraft grade materials, welded and heat treated components, these struts come with easy to use 3/16 inch (4.8mm) dia. wire adapter, also a split sleeve adapter to fit all popular 1/2 inch (12.7mm) socket type retract units. These RoboStruts are available in straight, right or left offsets (up to a 4 inch dia. wheel), and a fork style oleo