The installed weight is about 40g, safe, integrated with the body, will not damage the Drones, and can be airdropped. easy throwing allows you to showcases and create more possibilities. Suitable for 3 Drones, it can be used for remote delivery, such as throwing baits, wedding. The bottom landing gear is effectively raised by 21mm, allowing for takeoffs and landing in uneven ground environment, effectively protecting the safetys of the aircraft. USB charging for thrower, quick Releases, remote control (nonrechargeable) for 1click delivery control.