vintage shank buttons made of cooper 1.Fashion design 2. highr quality, ... 1,Product Info Item Namegood 20mm vintage shank buttons made of cooper MaterialZinc alloyColorAvailable in any electroplate & pantone color ... madeShapeRound or heart, othersTechnicslaser engraved, plated/ Electro, electrophoresis, organic, kirsite / zinc alloy, rust proofingFeatureeco-friendly ,washable , dry-clearing , ...