Tag: Grains Of Sand (2) | Newest
This gravity-sensing digital sand timer can used just like an hourglass, except the falling grains of sand are represented as 128 illuminated LED boxes.
This is the world's first adjustable time hourglass that can be set to 5 minutes, 15 minutes, or 25 minutes (no hour!?) and has a built-in quick reset button... Read More
