If there were a box for 'Exceptional', I would have ticked that. The glasses are absolutely fine - they conform precisely to the descriptions on your website, perform exactly as specified, and are an excellent thing. Better than that, perhaps, is your service. Communicating with the seller about an Internet purchase in progress is always uncertain, and you sphere of operation is - I imagine - one that demands perfect understanding between client and seller. You are clearly geared up to deal with it: my slightly hesitant enquiries always brought a prompt and efficient reply, and my mind - a little uncertain at this stage of the transaction - was immediately set at rest. Thank you very much. All best wishes - Peter Firth