Here's a General Description :

Material: The frame kit is constructed from carbon fiber, a lightweight and durable material known for its strength. Carbon fiber is widely used in quadcopter frames because it provides a good balance between strength and weight.

Arm Thickness: The ZMR250 frame kit features arms that are 3mm thick. This thickness is often preferred for racing quadcopters as it strikes a balance between durability and weight.

Frame Design: The frame design is likely to be compact and aerodynamic, optimized for high-speed racing. The layout of the frame is typically configured for a quadcopter setup with four arms and motors.

Motor Mounts: The frame kit should have designated and reinforced motor mounting points on each arm to securely attach brushless motors. These mounts are strategically positioned to maintain balance and stability.

Flight Controller Mounting: There will be a designated area for mounting the flight controller. The frame may also include slots or holes for securing other electronic components such as ESCs (Electronic Speed Controllers) and receivers.

Battery Mounting: The frame kit should include a secure and adjustable battery mounting system, typically using straps or other mechanisms. The battery placement is crucial for maintaining a well-balanced quadcopter.