Multi-rotor UAV Polished Carbon Fiber Propeller P18*6.1, 100% balanced P18*6.1 propeller is a perfect match with T-Motor MN4X-MN5X for optimal performance.

Polished carbon fiber propellers are a type of propeller made from carbon fiber that has been polished to a high shine. They are used in unmanned aerial vehicles (UAVs) like drones. 
Advantages

• Strength
  Carbon fiber is strong and durable, allowing propellers to withstand the stresses of flight 
• Rigidity
  Carbon fiber is rigid, which improves stability and flight control 
• Lightweight
  Carbon fiber is lightweight, which increases maneuverability and flight time 
• Low vibration
  Carbon fiber is stiff, which reduces vibration and makes propellers quieter 

Recommendation (for reference)

Propeller	P18*6.1	P18*6.1
ESC	FLAME80A	AIR40A / FLAME60A
Motor	U7-420KV	MN5208 / 5212-340KV
Thrust level	3.3kg/motor @6s	2.6kg/motor @6s

*Do not use under extreme environment conditions