Power Hobby - Hardened Steel 45 Tooth Mod1 5mm Pinion Gear with 2 Grub Screws Upgrade Parts Car and Truck Transmission Components The only items you need

The only items you need to add are four AA batteries for the transmitter and you'll be flying sorties around your local park within minutes of opening the box

item ASC27027 (not included):

Reamer (AE #1499) / Hole Punch

Warning: Never use these paints on plastic models

Power Hobby - Hardened Steel 45 Tooth Mod1 5mm Pinion Gear with 2 Grub Screws Upgrade Parts Car and Truck Transmission Components The only items you needIncludes: 1 Pinion 2 Grub ScrewsFeatures: 5mm Bore M4 Grub Screws Strong and durable Hardened Steel for long lasting performance Two set screw holes for extra secure fitting Hole cutouts for reduced weight Tested at 170+mph