:These are 30ml bottles of Liquid Bearings with the EXTRA-LONG 7.6cm needle. It is superior for R/C cars and all R/C equipment and tools, and general lubricant use. It is virtually-odour-free, making it a pleasure to use. It is also excellent for fishing reels, guns of all types, knives, power and hand tools, electronic and audio equipment, model trains, slot cars, clocks, watches, music boxes, fans of all types, locks and padlocks, bicycles, skateboards, roller skates, sewing machines, typewriters, and anything else you previously used petroleum-based oils or lubricant sprays on. Because of their nature, petro-oils and lubricant sprays leave sticky deposits when they evaporate over time. In contrast, Liquid Bearings is made using a process that re-arranges the structure so all the molecules are uniform in size, shape, and weight, an ideal phenomenon which does not occur in nature. It is custom-designed to produce the ultimate lubricant, with inherent performance characteristics vastly superior to any petro-oil, and it never evaporates! In your older items, it is fully compatible with all vintage and current oils, and will flush away the residue of the evaporated petro-oil. You will easily notice that anything you lubricate with it will immediately move easier with Liquid Bearings, especially if you have been using petroleum-based oil on them for years. It is completely plastic-safe for all plastics, and will not harm any painted surfaces. The bottle is top-quality soft LDPE, and the pharmaceutical-grade stainless needle allows the application drop-by-drop, very precise. We also provide BOTH the standard ½ needle AND the longer 2.5cm - 1.3cm twist-on/off needles, each with its own tip scabbard for leak-proof storage. We always offer a Try Liquid Bearings and you won't be disappointed, GUARANTEED! Large 60ml bottles of Liquid Bearings are also available, please search for Amazon item # B00CD5U2N0 and it will take you directly to the ad.