Trolley coin keychain can be made of iron,zinc alloy,nickel plated,double side logo,with fixing C-22 .It ismore and morepopular nowadays. Pin badge: Mateiral: copper, iron, stainless steel, brass, aluminum ,etc Size: up to customer`s option Style: new enamel, soft enamel, photo etched, silk screen printing, offset printing, 3D injection Colors:Pantone chart, DIC,Chart Plating: gold, nickel, antique-gold,antique-nickel, silver, etc Attachment: butterfly clutch, rubber clutch, magnet, safty pin, tie bar, keyring, tie tac clutch,etc Use: souvenir, promtional gift, decoration, collection,recogniton for group, team, community Price: depends on the design and the quantity Delivery time: 14-21 days Packing: 1pc/opp or acrylic presentation case/pc or customized package Market: mainly Europe, USA and Japan