Part of the collection called engineering: m80x6 brought to us by Concern Design Studio. The design team combined fine crystal and the engineering specs for the screw. The screws actually work. The combination of the finest , hand blown crystal and the engineering symbols create an area for unique aesthetics. The matter and the shape of individual collections are elicited from the appearance of metal machine components. Quatation, roughness marks and adequate engineering standards sand blasted into the surface of the hand made, 24% lead crystal then evoke a polemic with the character of today's mainstreem glassware industry which is often far from quality and craftsmanship. This glass looks stunning when personalised on the bottom so when the recipient enjoys the spirit, he or she can see your engraved message. Email us with your text and we will engrave for you for an additional fee of £15 (one) £25 (two).