1) when the magnet is stick together the product begins to sparkle with diversified light 2) stops flashing when the magnet 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 welcomed 9) various designs are available We can provide magnetic flash pin, valentine's day flash pin, flag flash pin Product size: 24*30*46mm G. W.: 10.1kg N. W.: 9.1kg Packing way: 1000 pieces/ctn/600*320*280mm 1pc/opp bag, 1000 pieces/ctn/600*320*280mm