This waterproof button flashes brightly to tell everyone at the bar or party that it's the wearer's last night of unmarried freedom! The included batteries will keep this funny bachelorette party accessory blinking all night long - the waterproof design means you can even drop it in a drink! The bright red reflective button is translucent to allow the flashing light to shine through, and reads: "Warning: Bachelorette's Last Night Out Party!" in white lettering. Color: Red Type: Bachelorette Party Favor Special Features: Waterproof, Lights Up, Batteries Included.