The Swarovski Wave Flatback 2788 is a crystal with a curved shape, resembling a small squiggle. The stone’s multi-faceted top allows for brilliant color refelction that compliment its organic shape. The 2788 is available in 8mm, 10mm and 14mm sizes and a variety of colors. This Swarovski Flatback is made of "advanced crystal" and is lead free. It can be glued to a variety of hard surfaces and textiles.