Description Dreamworks 7/16″ trunion mount small trailing link main struts are designed with our Sidewinder series retracts in mind but will fit any retract with 7/16″ trunion. Perfect for aircraft ranging from 12-21lbs. Includes: Pro-Link Small Trailing Link Main Struts Pro-Link 3/16″ Axles Nylon Axle Washers Specs: Length: 5.25″ / 133mm Wheel Sizing: 2.25″ on up Attachment: 7/16″ Trunion Lock Offset: .125″ Axle: 3/16″ Brake Flange: .375 Material: T-6 Aluminum Weight: 4oz (pair) Dont be fooled by imitations! When only the best will do, Go Pro-Link!