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!! 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.