The Readytosky Mark4 5" is an affordable freestyle frame designed for use with analog video transmission. For high durability, the frame features 5 mm carbon fiber arms. To reduce vibration transfer to the flight controller, the 30.5x30.5 mm stack is mounted on soft mounts, preventing direct contact between the screws and the carbon frame. The frame also provides 20x20 mm M2 mounting holes for smaller stacks. At the rear, there are 30.5x30.5 mm M3 and 20x20 mm M2 mounting holes for easy installation of a video transmitter.