waiting timer.Different time modes of hourglasses are suitable for different scenarios; ⌛Pleasure body and mind⌛： Through the high translucent ABS shell, watching the delicate sea sand sand ...

Create Your Own Sand Timer: the DIY sand timer allows you to customize your own hourglass with the colored sand provided, and the 4 tubes of colored sand are in dark blue, light blue, light gray ...

Once upon a time, [Mike] bought an hourglass for his sister. He intended to build it into a clock and give it to her ... rotates 180 degrees to restart the flow of sand. Whatever number is at ...