1. Light weight, good performance and durability 2. After precise dynamic balance test, provide strong pulling force for the flying machine 3. Provide quiet flight, strong and stable power 4. Main material: PC 5. Packing list: propeller x 4, screws x 12, screwdriver x 1 6. Net weight: about 5.8g 7. Size: about 4.6 x 1.3 x 0.7cm 8. Attention: only propeller, no others included
