1. Multiple colors can be mixed and matched, and multiple ways of playing can be achieved
2. Lightweight and strong, firm and durable
3. Equipped with screws and screwdrivers, easy to install
4. Material: plastic
5. Packing list: propellers x 4, screwdriver x 1, screws x 12
6. Single piece net weight: about 2g
7. Note: only propellers, no other parts