Suitable size: proper size is suitable for your daily decoration needs, you can use it in needsQuality material: our wind spinner motors are made of durable plastic material, featuring durability and no deformation, and can to 4 pounds of weight; So most wind sculptures and spinners can fit on this motorsRotate function: you need a D battery (not included) to rotate; Roughly 30 RPM, this rotation speed can fit for displaying your hang decor, can make you ornaments rotate without the windWide application: you can use these mobile battery operated motors to hang your different decoration, such as windsocks, wind chime, wind spinners, to help you to decorate garden, lawn, porch and other place you needPractical design: these multi-purposes rotatable hooks have a hanger at the top and a clip at the bottom so you can use it anywhere, convenient to use and simple to operate, classic color can add different feeling to Colour:blackMaterial:plasticSize:19 x 4cmPackage Contents:4 x Hanging Rotating MotorOnly 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.