Brand New Condition Still Factory Sealed Packaging Shows Some Light Shelf Wear, But The Plastic Overwrap Is Still Sealed. Real Science - Real Fun From The Wild Goose Company Whether Your Clock Is Ticking, Dripping, Or Flowing, You're Always On The Watch For An Extra Minute. In This Kit, Explore The Concept Of Time And Discover A Few Ways That Time Was Measured Throughout History. You'll Build A Sundial, Make Three Different Water Clocks, And Watch Sand Pass Slowly Through A Sand Timer. Nothing Better Than Being Right On Time! For Ages 8 And Up / Adult Supervision Required