Blob Timer A fun variation of the sand-timer used forever in science class email to friend
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This is a fun variation of the standard sand-timer used forever in science class. Blob timers provide an accurate way to time experiments with one drawback-you'll be so mesmerized watching the blobs of gel spiral their way down to the bottom that you'll forget to notice the time! Please note that colors may vary. Recommended for children ages 4 and up.

*Note the approximate time (2-3 minutes)

What's included?

• 1 pack or 4 pack of Blob Timers