Lac jewellery, especially bangles, are worn on all auspicious occasions in Rajasthan as they are considered a sign of good omen. The bangles are either plain or studded with glass pieces, bright stones — sometimes precious ones — and beads. They are extremely beautiful. The plain bangles have lahariya (wavy) or zig-zag designs. The ornamental ones are in several varieties, like patla and phooldar (floral). They are also set with salma and patri. Lac jewellery set with glass chatons is also a popular item in Rajasthan. Jaipur city is the big centre.