el flashing cap 1.LED caps 2.led flashing cap 4.powered by 1*CR2032 battery ... 5.el panels are customized ITEM:led cap,led caps,led hat cap,led hats,led flashing capled cap1.LED ... pupular logos for your choice ,cartoon characters ,sound equalizer etc.10. Size from S to XXXL available11. Packing: pvc,pe,pp,glue ...