1.Suitable Size: 12 pcs wind spinner motor measures approx 7.48 x 1.69 x 1.69 inches/ 19 x 4.3 x 4.3 cm, space saving, the size is suitable for your daily decorative needs, you can use it in your decorative needs 2.Suitable Speed Rate: the hanging black rotating motor is made of sturdy plastic material, it only requires 1 D type battery (not included) to operate, the speed is about 30 RPM, it can withstand about 4 pounds of weight, the switch can be adjusted manually, and this speed is ideal for displaying your decorations 3.Wide Application: the hanging spinner motor is suitable for most wind spinners, wind chimes, disco balls, etc., and its black color and stylish design make it versatile to help you decorate your garden, porch, and wherever you need to decorate 4.: our battery powered spinner has a hanging loop on the top for easy hanging so you can use it anywhere, easy to use and simple to operate, making it a versatile addition whether you intend to use it for discos, sculptures, spiral decorations, or decorative displays