Does not use chemicals. Dual phase technology for market leading sterilisation, rapidly reaches 100 degrees C. 35 minute sterilisation cycle. Kills more bacteria by staying hotter for longer. Automatic switch off. Bottle warming feature. Dismantles for easy cleaning. Includes 2 x 250ml bottles, 2 medium flow teats, training cup, soother, bottle brush, tongs, measuring jug and top basket.