TUCCO HEART ADJUSTABLE RING IN SILVER. MAY FIT 6-9 TUCCO is handmade in Malaga, Spain. Considered one of the accessories line most worn around the world. Jewelry artisanal that people value & carry. HIGH QUALITY AND FOR EVERYONE. Material: Zamak Zamak is an alloy of four metals (zinc, aluminum, magnesium and copper). His name is the product of the combination of his initials. The final result is a hard and resistant material with the ability to chromate or paint it.