This is the Sand Clock icon for Windows 10. Here we go. Optimized for 32x32 px, these are the simplest icons in the line style. Downloadable formats are PNG and SVG, among others. Icons8 icon pack is unique in providing a huge number of icons designed by the same team of four designers who create the new icons every working day in the same style and with the same quality. Same cool as the Bat Face, huh.
Imagine the top shape of a wine glass without the stand and base, and now imagine another one that is upside down and they're both connected. Both of the openings of the whine glasses are enclosed from the top and bottom. There is space in the middle for small objects to pass through.