Review on 🕒 Dadam 2 Minute Sand Timer Set of 5 - Smiley Sand Timers for Children's Teeth Brushing - Colorful 5-Piece Hourglass Timer - User-Friendly for Kids Boys and Girls - Encourages Optimal Dental Care by Orwin Greener

Very useful when brushing your teeth. I wrote the times for each timer on each side. All but one had an average time of 2 minutes 4 to 7 seconds. Every time you turn it on, the time changes. Sand isn't digital so times will fluctuate and that's to be expected. The last one was three minutes and some changes. I don't trip over it, it was a cheap fix to the problem hence I got 4 stars for the money. I would recommend this product to someone who needs to calculate something in two minutes. I would suggest writing down the time on each page to get a rough idea of how long it will take.