"Science" key ring, a design featuring Leonardo Da Vinci's "Vitruvian Man," comes from ACME Studio's line of designer key rings. These key rings are made of a special zinc alloy and a braided stainless steel wire to hold the keys, with hand applied enamel depicting the unique artwork or design done by the designer. Each key ring is package in a black ACME flannel pouch with the designer's bio card.