Each set has two CR1616 batteries. The finger cover is comfortable for the soft rubber、 the cover top is thin to transmit more light . The colorful light is suitable for stage and dancing hall.
Dimensions: 1.89 in x 0.94 in x 0.83 in (4.8 cm x 2.4 cm x 2.1 cm) Weight: 0.60 oz (17 g)