Liquid Bearings, BEST 100%-synthetic oil for all slot cars, makes cars faster!! 100%-synthetic lubricant, perfect for all slot car lubrication! Immediately begins to displace old petro-oils or sprays. Makes slot cars run noticeably faster ! Includes both 1/2" AND 1-1/2" needles, each with tip scabbard! Plastic-safe for all plastics and painted surfaces!