Suitable Size: The appropriate size fits your daily decoration needs; you can use it as needed. Quality Material: Our wind spinner motors are made of durable plastic material, offering durability and no deformation, and can support up to 4 pounds of weight; thus, most wind sculptures and spinners can fit on these motors. Rotation Function: Requires a D battery (not included) for rotation; approximately 30 RPM. This rotation speed is suitable for displaying your hanging decor, making your ornaments spin without wind. Wide Application: You can use these mobile battery-powered motors to hang your various decorations, such as wind socks, wind chimes, wind spinners, to help you decorate gardens, lawns, porches, and other places you need. Practical Design: These multifunctional rotating hooks have a hanger at the top and a clip at the bottom, allowing you to use them anywhere. They are convenient and easy to use, and the classic color can add different feelings. Color: Black Material: Plastic Size: 19 x 4cm Package Contents: 4 x Hanging Rotating Motors. 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 to be slightly different from the real thing. The measurement allowed error is +/- 1-3 cm.