Scientifics Direct Inc 点评

It is easy to use, but may take some practice to create something.

The color box is fascinating.

Quality issue: No instructions for assembly. The metal bar doesn’t attach to the stand. The insert holes on each stand are too small to fit the metal bar which holds the balls. Two of the balls...

It is exactly what she wanted.

looks good, but a Xmas present, and won't know mor til then

OK, but a Xmas present and won't know more til then

About what I expected when exposed to sunlight coming through a window Very pleased, surprised even, with the response to a small UV flashlight.

This was a bit of a gamble, as the picture looked like an ugly rock. Fortunately the product matched the verbal description. One piece was broken off at the tip but it showed a septum of the fossil....

Hard to find good holographic grating of this size for the price.

Product functioned perfectly. I was worried about some of the requirements I place upon it. But we had no issues and our event went perfectly. Thanks for offering these products.