Optimized Performance: This 2 inch cinewhoop quadcopter propeller is quiet and efficient. Designed for greater thrust, it's perfect for enhancing your racing and freestyle flying experience Premium PC Material: Made from premium PC material, this 2 inch propeller offers unmatched durability and efficiency. Its ultra- blades are engineered to withstand tough flying conditions, ensuring long-lasting performance Dimensions and Compatibility: Each propeller measures 50.3mm and features 1.5mm mounting holes, making it a great fit for a wide range of small racing drones and Tinywhoop-class aircraft Compatibility Recommendations: These propellers are ideal for 1103-1105 brushless motors, making them a versatile choice for a wide range of drone models. Ensures optimal performance and compatibility with your RC FPV setup Comprehensive Set: Set includes 4 pairs (8 pieces) of 2020 propellers in CW and CCW configurations, which can be swapped out multiple times or upgraded as a full set, ensuring you're for action Item name: 2020 51mm 1.5mm Hole Propeller Number of blades: 4-blade Pitch: 1.9inch Center hole diameter: 1.5mm Paddle disk diameter: 50.3mm Center thickness: 4.5mm Maximum blade width: 10.6mm Recommended motor: 1103-1105 Colour:A black Material:PC Due to different batches, there may be differences in product appearance and printed text, which not affect use Package Contents: 4 * CW Propeller 4 * CCW Propeller Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.