1. Alloy double zipper, wear-resistant and waterproof 2. Plastic handle, easy to carry 3. Precisely molded inner bladder, neither loose nor tight 4. Shock-absorbing and compression-resistant, effectively protecting your device from normal scratches, dirt, tears and wear 5. Material: shell PU+EVA, inner tank EVA 6. Capacity: Can hold 1 host, filter, 1 RC 2 remote control or RC N2 remote control, 1 charger, and 1 battery manager (battery cannot be placed in the battery manager), 3 batteries (including 1 on the body), propellers 7. Size: approx. 29 x 23 x 11cm 8. Weight: about 700g