This attachment is designed to sit on top of tall vases. It can also be used to create an ideal succulent terrarium. Along with its versatility of uses, the Glass Hurricane Lightshade can stand beautifully on its own, or atop a fluted or cylindrical glass vase. This piece stands 10in tall and 10.25in wide. The top opens at 4.5in in diameter, and the base measures 3.5in in diameter.