Please note: If you order multiples of these (particularly over separate categories), eBay WILL mess up the shipping and overcharge you; the platform just doesn’t handle multiple items over different categories very well. I WILL refund the difference to you after I purchase shipping. I don’t make money off of shipping. You don’t have to even ask–I’ll do this automatically for you. Created by a former engineer-turned-hobbyist who just couldn’t find the right product for his model trains, airplanes, and boats, these were formulated to take into account new materials along with recent innovations in lubrication technology. Suitable for all plastics (including nylon) and metals (including brass), Sooper Smooth lubricants are truly the go-to lubricants for the break-in, maintenance, and restoration of models with moving or sliding parts. These are specifically designed to not attract dirt, dust, or gum up. These formulations were created in conjunction with an extremely well-known commercial lubricant manufacturer to be better than all products currently on the market and are perfect for: Model trains, cars, boats, airplanes, and anything else one can remote controlDronesRobotic partsGuns / FirearmsSewing / Embroidery machinesHousehold appliances, door hinges, etc.All sorts of padlocks, locks, combination tumblers, etc.Gaskets Fans, including those made for the home and smaller ones such as for computers Basically, if you can fit it on a small workbench, this lubricant will work. Oils are 15 ML bottles while the PTFE / Teflon lubricant is in a 15 oz tube. Both the medium and light oils include a precision applicator metal tip. Sooper Smooth — It’s Slicker than Smooth!