Product Highlights: Re-engineered with Airflow Tested for Steamline, Low Resistance. Made by Strong Re-enforced Top Quality Imported Carbon Fibre. Very Durable, Break-proof Technology. More Rigid and Ligher Weight. Better Balance before delivery. Description: 1. Carbon Fiber Material 2. Size 9.0x5.0 CW and CCW in Pair 3. Center Hole: DJI Type 4. With NO adapter