1. For MacroQuad 7x4x3 7040 Paddles 2. Made Of High Quality Material, And Wear- 3. Nice Replacement For Broken Or Old One, Make You Device Work Properly 4. High Quality For Professional Use 5. Need A Professional To Install The Corresponding Drone Accessories To Avoid Damage To The Accessories Propeller diameter: 7 inches Pitch: 4 Blades: 3 Center diameter: 13.5mm Center thickness: 7.5mm Shaft: 5mm Adapter ring: None Note:Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Not Affect The Use. Colour:As Shown Material:PC Package Contents: 2 * CCW Propellers 2 * CW Propellers 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.