Materials:glass,magnetic,and iron filings
Dimensions (hourglass):6'' high x 2.25'' diameter;Dimensions (base):3'' x 3'' x 0.75'';
Timer is approximately 20 seconds long.
The Magnetic Sand Hourglass is a fun desktop diversion. Flip it over and watch the grains of iron stack up in seemingly impossible formations thanks to a magnet embedded in the iron base.
Watching time fly has never been so interesting!The craggy configurations of the iron filings eventually build into an ordered hemisphere with a spiky surface. Like your favorite movie, you can enjoy watching the Magnetic Sand Hourglass over and over again.

Technical Details

Product Details

Package Dimensions
Width : 3.4 inch
Height : 3.3 inch
Length : 7.9 inch

Shipping Weight: 6.4 ounce (View shipping rates and policies)

ASIN : B00JYV10IW