Review on ⏳ XINBAOHONG Sand Timer Set - 5 Minute and 15 Minute Hourglass Sand Timers for Classroom, Office, Kitchen, and Games - Pack of 2 (Blue 5 Min, Green 15 Min) – 6.3''X 3.2'' by Jake Hillyer

I was wary because a set of two of these were a bit cheaper than just one of the units from other vendors, they arrived quickly and seem well made. They are much bigger than the lousy sand timers included with board games. These are just over 6" tall and 3" wide. The colors are nice and they meet their accuracy goals (they are sand timers not precision stop watches) Most of these products claim + or - 10% accuracy. My 3 minute unit clocks i at 3:06 pretty good! and the 10 minute unit finishes at around 9:35 still within the 10% goal (within 9-11mins is 10%) pretty good. I wish this company made a 1 minute version. The inner sand timer is glass and the outer protective surround is a clear plastic, I recommend them.