Material: this GPS mount is designed to withstand the rigors of FPV drone racing, ensuring a secure fit and protection for your GPS module. Optimized Design: The antenna bracket is specifically tailored for the Mark4 frame, providing a stable and fixed positioning for enhanced signal reception and flight safety. Easy Installation: This holder features a user-friendly design for quick and easy installation, allowing you to spend more time flying and less time setting up. : The construction does not affect the drone's performance, making it ideal for racing and high-speed maneuvers. Specifications GPS Mounting Aluminum Post Height: 25mm Applicable GPS size: 25mm Note: Not suitable for MARK4 V2 version racks. Applicable: MARK4 1 generation: 5 inch 6 inch 7 inch 8 inch GPS print holder with antenna holder Applicable 25MM size GPS antenna holder Colour:Black Material:TPU Tips: The product may be updated constantly ,Due To Different Batches, The Actual Product May Have Slight Differences Or Color Differences, Which Does Not Affect Use Package Contents: 2 * GPS Print Antenna Mount Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.