Flash whiskey cups Diamter:7cm Height:9cm Content:8oz Material:acryl Function:a switch at bottom to activate fast blinking , second time to turn off For changing batteries: pulls bottom from cup gently, unscrews two sliver phillips-screws off, removes light board, turns upside down and replaces 3 batteries by sliding them out with screw driver and then repeats process in reverse to complete it Inner packing:4pc/color box Outer packing;120pc/ctn
