The maximum running time of this smiley toothbrush sand timer is 9 Min. So you can pick any point from 30 seconds to 9 Minutes. But there is a 10% tolerance because our hourglasses are all handmade. And 10% tolerance is the professional standard.
The popular running time: 2 Min, 3 Min.
We can print your logo, and different smiley faces on the plastic caps. And print is the best method.
As a factory since 2002, we can have some cases for your reference and hope they can do some help.
(1) We can produce the caps in different colors. And we can also print the smiley faces in various designs.