Tri-wing screwdriver, special screwdriver SUNFLAG Part number TR-2022 Includes 2 sizes: 2.2mm and 2.0mm, interchangeable I bought this on the internet (Rakuten Ichiba), but it took a while to arrive... I purchased a similar item at a physical store, so I'm offering this one to someone who can use it. This product is unused. The tri-wing screwdriver I bought at the physical store was used to unscrew the tri-wing screws on McDonald's Happy Meal toys.