10 x 4.5 Inch Black 2Blade CW and CCW RC Propeller Pair without Spacing Rings Key benefits Readytouse matched pair: One clockwise (CW) and one counterclockwise (CCW) 2blade propeller included, simplifying assembly and ensuring correct rotation for common RC configurations. Correct sizing for many electric models: 10 inch diameter with 4.5 inch pitch provides a balance between thrust and efficiency for hobby RC applications. Clean installation: Supplied without spacing rings so the propellers can be fitted directly to hubs that do not require extra spacers or used with your existing adapters. Product highlights Size: 10 x 4.5 inches (diameter x pitch). Blade count: 2 vanes (2blade design). Rotation: One CW and one CCW propeller included in the pair. Color: Black. Packaging: Sold as a pair; spacing rings not included. How this product solves common problems Eliminates the need to match rotation directions when replacing damaged props: the pair contains both CW and CCW blades for straightforward swaps. Fits setups that do not use spacer rings: if your motor mounts or hubs do not require spacers, these props install quickly without extra parts. Offers a common size used in many electric RC builds, helping you restore or optimize thrust without redesigning your powertrain. Compatibility and fit notes Designed for electric RC model aircraft and multirotor applications that accept 10 x 4.5 inch 2blade propellers. Confirm hub bore and shaft adapter compatibility before installation. Spacing rings are not included, so use your existing rings or adapters if your hub requires them. Not specific to any single motor or airframe. Verify propeller diameter, pitch, and rotation direction match your motor and airframe requirements. Practical applications Replacement parts: Swap out damaged or worn propellers on small to medium electric RC airplanes and sport models. Matched rotation setups: Use as a matched CW and CCW set for multirotor prototypes or custom fixedwing builds that require oppositerotation props. Performance testing and tuning: Try different propeller pitches and diameters in test flights to tune thrust and efficiency for specific motor and battery combinations. Installation tips Balance check: Inspect and balance the propellers before flight to reduce vibration and improve motor longevity. Secure mounting: Tighten hardware to manufacturer torque recommendations and verify there is no contact between blades and airframe. Preflight inspection: Check for cracks, nicks, or deformation before each flight. What is not included Spacing rings or shaft adapters are not included. Ensure your setup either does not require spacers or that you have compatible adapters on hand. This pair of 10 x 4.5 inch black 2blade propellers provides a convenient, matched CW and CCW option for a variety of electric RC applications where spacing rings are not required.