EUROPALMS LED Glass 2oz with Dice Play, red, 3x is a set of three clear 2 cl glasses equipped with nine 3 mm red LEDs each. The LEDs are powered by two built-in 1.5 V LR41 alkaline manganese button cells. The electronic block can be removed for washing and reinserted afterward. The integrated dice-play function is activated when the glass is tapped against a table. Each glass measures 6.2 cm in height and 4.8 cm in diameter and weighs 0.07 kg.