Quality Material Our lie detector test is made of high-quality plastic, durable. Powered by three No. 5 batteries (not included), easy to use. Shock Roulette Party Game This game is perfect for those fun occasions where friends are getting together and need some entertainment. The thrill starts when all the friends insert their finger into a bucket and the light indicator starts moving The Most Thrilling Game Of The Season Is Here 2-6 player, game player put your finger into the small, light random rotation, when the voice sobbing stopped when the indicator light which refers to the game player, "loser" fingers will be a shock. Make Your Game Nights Fun and Exciting With electric shock roulette, you and your friends can have hours of fun and laughs as you determine who's going to be the next victim in a tense atmosphere A fun party game played with your fingers. Great gift for family & friends. A best Christmas GiftIt's very convenient to carry, and you can send yourself or a friend's child. This will be the best gift. This product is made of environmentally friendly plastic, safe and non-toxic; safe voltage, harmless to human body, does not affect human health.