I meant to make a post about it a while ago, but never had time for the pics. If you can afford it, I'd definitely suggest it though. Its much cooler though if you have a fogger to complement it though. The price is definitely right as the diffraction gratings alone would have costed the same price on eBay. In my particular set I also got a lot of neat lenses, prisms, a fiberoptic guide, some first surface mirrors etc. There are some other cheaper optics kits elsewhere that actually have a lot more interesting stuff, but this is the only one I know that has parts that have the size, quality, and function for good laser stuff.