The numerous, Red Dot award-winning team combined fine crystal aesthetics with the engineering specs for the screw. The screws actually work! The technical details of their sizes in the sandblasted finish intentionally show engineering symbols hence lending its name to the entire collection. The deep and sharp vertical cuts starting from the bottom and finishing at the m80x 6 level adopt machine characteristics: quotation and roughness marks, shapes of machine parts etc. The combination of the finest, hand blown crystal combined with the engineering symbols create an area for unique aesthetics and refined design. A perfect gift for him. 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).