We issue the 310Slim Weight comparison article on Facebook yesterday, The inflow to 310Slim WEB pages has increased significantly. Recently, 310Slim is expanding sales for hobby drones. As we said before, a license is required to fly a drone, but a license is not required in Japan for drone flights weighing 200 g or less. So, drone users are pursuing lightness to extend battery time and clear this regulation. To use this system, you can propose your customers!! 310Slim Auto Comparison System https://www.saima.co.jp/en/Product/slim/weight.php We have many proposal for this product. Please visit our web page and give us request. 310Slim https://www.310ex.com/product/drone-robot-screw-310slim/ Have a good weekend.