Tonka Cotto Cotton Ball Christmas Gifts Patio Party String Lights Decor Home Living Room Patio Wedding Christmas , Party Yard Garden Decorative Lamp Display (20/set) (Brown) 6 cm. Dimension of 20 Cotton Balls on 3 Meter 12 cm. gap between cotton balls, Can connectable head to end to make more long string lights (USA only) Operating voltage: 110 - 240V AC Size of Ball: Diameter ~ 6cm Can be used indoors or outdoors with caution.