Liquid Bearings, SUPERIOR 100%-synthetic oil for lubrication of drones, RC vehicles and equipment Ideal for drone motor lubrication, cooler operation!! Immediately begins to displace old petro-oils or sprays. Makes drones operate quieter and smoother! Essentially odor-free, a pleasure to use! Includes both 1/2" AND 1-1/2" needles, each with tip scabbard!