I ordered a jeweller's loupe for the website because I use mine often when looking at rocks. I ordered this one on a keychain because what a brilliant idea!?! I am away to put my own jewelry loupe onto a keyring. I am getting blinder all the time.

I love this. sturdy, easy to open, makes small print bigger, shows me the surface of crystals and mineral specimens. Excellent when checking tiny crystal structures. We first stocked the 10x magnification jewellers' loupe but this is 20x, for those of us who are older and blinder or, em, wiser.

These were shipped to us from a company in France which we use for stuff we can't easily get in the UK. We also buy incense from them because why not. You expect incense in a crystal shop, right?