... metal button badge material:tin size:2.5,3,4,4.5,5,8,10,14cm full color printing design high quality,with different ... pin back metal button badge,pin badge1. material:tin/plastic2. size:20mm, ... 25mm, 30mm, 35mm, 40mm, 45mm, 50mm, 70mm,140mm3. full color printing design4. with ...