The Nova FPV Freestyle quadcopter is a unique symmetrical X mini quad, designed for high-performance FPV Freestyle flying. 
 
The airframe features removable 4mm carbon fiber arms. The arms are sandwiched between the bottom plate and 2mm battery plate giving you an incredible 9mm thick of carbon fiber at the center of the body. Each arm is secured in place with 3 screws and press fit threaded posts in the carbon fiber main plate. This allows you to remove 1 arm by simply taking out 3 screws with just 1 tool.
  
Features
Full 3K Carbon Fiber True-X airframe with removable 4mm arms.
Top mount battery design for excellent balance during freestyle flying
Press nuts for fast removal of arms
Ultra light, durable, sanded and chamfered Japanese carbon fiber
20mm standoffs for sleek low profile design - Built-in GoPro mount system
Easy grip black anodized spacers
Supports 20mm and 30mm bolt pattern for a wide variety of 4in1/Flight Controllers
Unique spiral design interlocking arms for extra support and flight stability
Arm spikes for extreme motor protection during crashes
Personalize your Nova frame with additional unique skins (sold separately)
Weight:117.4g
Up plate:1.5mm;
Bottom plate :2mm;