High performance and a splash of nostalgia, your grade school slap bracelet got an upgrade. The one-size-fits-all Amphipod Full-Viz Flashing Reflective USB Rechargeable Slap Bands Bin 12 Pack is all the fun and convenience you want with 3 fluorescent colors and a quick-wrapping spring band design fitting your wrist, ankle, and more. USB recharge in less than an hour with 12+ hours of life.