This is a special effect, a background effect, much like a "cardboard" cutout. It is a room prop that you can stand in front of or behind, to enhance your photos and screenshots. The frame of the hourglass is solid wood, while the glass and sand are sheer. This piece can be sized and resized, rotated and skewed to get the perfect angle and dimensions for your scene. **It is a 2d, not 3d prop.