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
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