They are spare propeller blades 4 black with the removal tool.
Dilwe RC Boat Propellers, CW CCW Nylon 2 Blades Rotating 2mm Shaft Remote Control Boat Ship Propellers Blades Set
4Pcs Propellers Blades, Carbon Fiber Enhanced Props Blades for DJI Phantom 3 Drone Quadcopter Accessory (Yellow Edge)
4Pcs Carbon Fiber Propellers Blades Quick Release Composite Self-Locking Propeller Prop Compatible with DJI Phantom 4/4 Pro/4 Series
(12Pcs) Air 2s Propellers Blades Compatible with DJI Air 2s / Mavic Air 2 Props Propeller Wings Replacement Accessories
Airhogs Hyper Drift Drone Propellers for and instructions.
HeiyRC Mini 4K 2 SE Propellers Propeller Guard Landing Gear Leg Propeller Holder 16 Pcs Blades, 4 in 1 Bundle for DJI Mavic Mini 2 SE/Mini 4K/Mini SE/Mini 2 Fly More Combo Drone Accessories Set
