1) when the magnet is sticked up the product begins to sparkle with diversified light 2) stops flashing when the screw is loosened 3) red, yellow, orange, blue, jade and white led colors are available 4) can be attached to clothes using a strong magnet, safty-needle, or butterfly button 5) logos can be printed on the product 6) shapes can be changed according to customers' requirements 7) it's the best choice for promotion 8) oem and odm welcomed 9) various designs are available We can provide magnetic flash pin, valentine's day flash pin, flag flash pin Carton size: 5*5mm G. W.: 12kg N. W.: 11kg Packing way: 1 pc/opp bag, 720pcs/ctn/375*215*320mm 1 pc/opp bag, 720pcs/ctn/375*215*320mm