Combining sound and light this solar powered wind chime features four metal tubes and a crackle glass pendular ball striker which measures 9cm in diameterr r the colour changing led inside the crackle glass ball fades through a variety of colours to create subtle light and shadow effects as the tubes gently chime in the breezer r hanging from the base of the glass ball is a delicate metal butterfly that catches the breeze and helps the tubes to chimer r easy to use with no mains wiring the