Copper Shielding Tape per Foot

Copper tape 2″ (5 cm) wide, sold by the foot (30.5 cm). One foot of tape will shield three or four piezo discs, or two discs and one Cortado MkII PCB. Each Cortado MkII Kit includes 6″ (15.25 cm) copper tape; get some extra tape if you want to wire multiple piezos in parallel into one Cortado MkII PCB.