For more information about our products, you may refer to our website Features:1) Size: from 10mm to 18mm 2) Any voltage available 3) Dimensions: 71 x 71 x 10mm, 71 x 71 x 12mm, 71 x 71 x 14mm, 66 x 66 x 10mm, 66 x 66 x 12mm, 66 x 66 x 14mmOuter packing:Cartons Box Fan Motor