The Atomic Fox is designed for ultra-smooth freestyle and long-range flying. . Natively fits a GoPro Session or enough space under the hood for a runcam split. The Atomic Fox has a titanium core structural plate to make it insanely durable. It also comes equipped with replaceable front and rear arms that can swing up to 5" propellers using up to 23 series motors. Designed for use with TBS powercube and all other 20x20 or 30x30mm electronics stacks. Note This is just the frame kit no motors or props are included. Features Propeller Size 4-5  . Replaceable front and rear arms . Designed for 15-23 series motors . Serial numbered titanium center plate . Titanium hardware . 3D printed canopy in TPU in five colors . Fits GoPro session or Runcam Split Includes 4x 4mm Front and Rear Arms  . 1x Titanium Top Plate . 1x 2mm Bottom Plate . 1x TPU Canopy . 1x High-Quality Hardware Kit . 1 x Battery Strap