Description These oleo struts are made for 64-90mm jets in the 2-6kg/ 4.4-13lbs.  They add functionality and scale realism to your edf jet.  These struts can be used with retracts or with fixed landing gear.  The struts help smooth out rough landings and gives better ground handling even on grass fields. CNC Machined Aluminum articulated and hydraulic suspended landing gear. Main gear and single nose gear. For planes up to 6kg. These struts work great with RBC Kits designed to take retracts. These struts will work with both JP Hobby ER-005 and ER-120 retracts. Specifications Materials: Aluminum Struts diameter: 10mm Wheel axle diameter: 4mm Mounting shaft diameter on Oleo: 5mm Weight: 130g (for the 3 gears) Suspension: mechanic For planes up to 6kg/ 13.2 lb Nose Gear Length: 113mm/ 4.4 Inches Main Gear Length: 110mm/ 4.3 Inches Nose Gear Wheel: 40mm 4mm axle Main Gear Wheel: Up to 50mm 4mm axle Content 2x Scale metal struts for main landing gear 1x Scale metal strut for nose gear Note: The oleo struts are delivered without the wheels. JP Hobby, retracts, weels and brake   Insurance Note:  Fan Jets USA recommends the purchase of shipping insurance. If insurance is not purchased and the package is lost or damaged, the most that can be claimed with the USPS and awarded to the purchaser (shipment recipient) is $50.00.  Fan Jets USA is not responsible for reimbursing the purchaser the difference of an order of any amount.  Shipping charges are not included in an insurance claim per USPS guidelines.