Review on Hourglass Plastic Sandglass Decoration Classroom by Jackie Wright

This hourglass looks well made. The sand runs smoothly and is easy to see. However, the timer comes with a sticker that says "Accuracy plus or minus 10%". After several tests I can say that this is definitely not a minute timer. That time is about 49 seconds, which is about 20% of the one-minute mark. I didn't really care because the timer is supposed to be played by my four year old grandson. But if you need precision, this timer is not for you.