Features: 【Precision Dynamic Balancing】Employing stringent dynamic balancing quality controls standards to ensuring seamlessly compatibility for O4 transmission. 【Multiple Colour Option】Available in transparently gray, transparently blue and pink to cater to diverse personalisation preferences 【Lightweight Design】Each propeller weighs merely 1.2 grams, effectively reducing the aircraft's taking off weight to 240 grams while enhancing flight efficiency and durability. 【High-Efficiency Propulsion】The combination of 63.5mm diameter and 2.4-inch pitches, paired with the recommended 1404 4600kv motor, delivers robust and stable thrust. 【Durable Construction】Manufactured from PC, it offering excellent impacts resistance, extending service life and reducing replacement frequency. Specifications: Blade model: 2.5-3 Component PC Color: Transparently gray, translucenty blue, translucently pink Thread pitches: 2.4in Blade diameter: 63.5mm Center thickness: 5mm Center hole inner diameter: 1.5mm T-mount Blade width: 12mm Weight: 1.2g Recommended motor: 1404 4600kv Package Includes: 4piece set of D 2.5-3 propellers note: Please allow 1-2cm errors due to manual measurement. Please allow for slight color differences due to different display resolution.