Optimized Performance: This 2 inch cihoop quadcopter propeller is quiet and efficient. Designed for greater thrust, it's perfect for enhancing your racing and freestyle flying experiencePremium PC Material: Made from premium PC material, this 2 inch propeller offers unmatched durability and efficiency. Its ultra-durable blades are engineered to withstand tough flying conditions, ensuring long-lasting performanceDimensions 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 aircraftCompatibility 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 setupComprehensive 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 always ready for actionItem name: 2020 51mm 1.5mm Hole PropellerNumber of blades: 4-bladePitch: 1.9inchCenter hole diameter: 1.5mmPaddle disk diameter: 50.3mmCenter thickness: 4.5mmMaximum blade width: 10.6mmRecommended motor: 1103-1105Colour:A blackMaterial:PCDue to different batches, there may be differences in product appearance and printed text, which will not affect usePackage Contents:4 * CW Propeller4 * CCW Propeller