This Kyosho Spanner Tool is a must-have for any RC enthusiast. With a size range of 5.5mm to 7.0mm, it is perfect for tightening or loosening hexagonal screws. The tool is brand new and sealed, ensuring top-quality performance. It is compatible with various Kyosho models and is ideal for use with radio control and control line vehicles. Whether you're a professional mechanic or a hobbyist, this tool will make your life easier.