This Anti Vibration Ball is designed for various phantom aerial photography. With the help of this rubber ball， you can better control your Quadcopter and take more fluent and stale pictures and scenes. It's a good companion for FPV players. This product is better than the stock rubber ball， and it can totally resist the high-frequency vibration. <br><br><strong>Features</strong> <strong>：</strong> <br>Dual-head anti-vibration rubber ball. <br>Widely used in PTZ connection and FPV system. <br>Very elastic. <br><br><strong>Specifications:</strong> <br>Softness: Neutral <br>Model: Small <br>Single ball load: 180 g <br>Diameter: 7mm (inner) 10mm (outer max dia) <br>Height: 15mm <br>Installation height 9mm <br>Color: Red <br>Test data of vibration elimination (8 AV ball as e.g.): <br>8AV Ball 400g: 150khz 88%， 100Khz 90%， 60Khz 92% <br>8AV Ball 800g: 150khz 88%， 100Khz 90%， 60Khz 90% <br>8AV Ball 1200g: 150khz 95%， 100Khz 93%， 60Khz 90% <br><br><strong>Package Information:</strong> <br>Package Size: 6 * 5 * 3cm / 2.4 * 1.9 * 1.2in <br>Package weight: 53 g <br><br>Note: 150 KHz is the main Vibration frequency band