The lamp is crafted from original rock salt, The natural colour of these salt crystals blend from off white to apricot and orange to warm pink. Each lamp and candle holder is carefully handcrafted, thus making it unique and one of a kind. Rock salt crystals and lamps effectively improve the quality of air by producing negative ions - the "vitamins of the air". Negative ions can be found in billions, on mountaintops, water falls, countryside and by the sea. They give the air its invigorating freshness, which is extremely good for our health. Crystal lamps which are illuminated from inside (warm) emit a higher number of ions. Polythene packaging for each lamp, each lamp is packed in individual box, four boxes per carton.