Acrylic liquid hourglass 1.Size:10* 3* 9cm 2.Tea ... selling Hot Sell High Quality 1,2,3 Minutes Acrylic Liquid Tea Live Hourglass Item #BH-7005Timing1,2,3 minutes ... great to be business gift, promotional gift, tea live sand timer.... Widely Used* Customize dimension, colors, designs are all acceptable ... a narrow tube. One of the bulbs is usually filled with fine sand which flows through the narrow tube ...