DO NOT BUY<br><br>I bought these with the intention of using a UV light to read. Unfortunately they are not uv active. The listing has been updated since I made my purchase and now no longer claims that they are UV active. This is a waste of money for me since I need the uv active plates. I am unable to return my order because I missed the return window.

I ordered these glass-backed plates just in case the aluminum plates I had on hand didn't work. When my fears proved correct, these plates worked flawlessly. The binding might be a bit less sturdy than other plates I've used in the past, but only required a bit more care with the pencil and capillary. Already bought more.

I initially bought these plates because the Amazon product description stated that these TLC plates were rated for ��high fluorescence�� upon receiving these plates I immediately examined them under both a 254nm UV light and a 365nm UV light in a completely darkened room. To my surprise the plates did not fluoresce at all. I contacted the seller and they told me thr part of the product description stating ��high fluorescence�� was wrong and not true and that these plates do not fluoresce. The seller told me they would correct that information immediately. Nonetheless, this was a large waste of time and money and the lack of detail on the part of the seller cost me. I am returning these plates immediately as a result of the false advertising.