Product Description: Advantages: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information 2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed.3.Long/short nut: The long and short nuts correspond to the long handle switch and the short handle switch of the remote control respectively. Please pay attention to the difference when installing.4.Material: Hard material, good strength, not easy to deform. The plating layer is bright, and the radio nut is not easy to fade.5.Easy to install: When installing, just align the protruding part of the nut tool with the nut slot to install and remove. 6.Replacement for Futaba transmitter and Replacement for JR transmitter, such as QX7, X9D, Devo 7, Devo10 Specifications:Material: Aluminum AlloyColor: BlueSize:Nut inner diameter: 5mm Nut outer diameter: 11mm Nut height: 3.8mm (short) 4.8mm (long)Wrench: 25 x 11mm/0.98 x 0.43 (L x Dia) Weight:10g Package include:8x Switch Nuts ( 4 Long nuts and 4 short nuts)1x Wrench