The sand is not ordinary glass beads but electroplated ones. The size of these electroplated beads is much bigger than normal ones. So when they come down and hit the glass, there will be clear sounds.
The maximum running time of this hexagon hourglass is three minutes, and you can pick any point in the running time range. But as handmade products, there is a 10% tolerance. And 10% tolerance is the professional standard in this area.
Popular Running Time: 1 Min, 2 Min, 3 Min.
We can print the logo on the glass surface.
We wrap each unit with polyform, then put it into a white box. Packing in this way is very safe.
For other general information like the samples, shipping, payment terms, please check the FAQ page. There are great answers.
As a factory since 2002, we can have some cases for your reference and hope they can do some help.
(1) About sand and running time
The maximum running time is three minutes by using electroplated sand. It might not be enough for some customers. If you need the hourglasses to run more time, we can change electroplated beads to normal beads.