Combining the three most common tools into one tiny and extremely handle little trifecta. Two 8mm prop nut sockets on opposing ends of silky smooth and robust redesigned one-way bearing system enable for quick and smooth prop changes. The silver side is for loosening and black side tightening. These 8mm hex sockets are Accompanied by the most common of all FPV drone bolt sizes 2.5mm and 2mm hex drivers. This tool is all you’ll ever need in a pinch and will outlast your aircraft many times over.