DUAL-TIER: Removable double-layer racks for easy storage. Lower rack holds up to 8 standard bottles. Upper rack can be used for nipples, toys, teethers, pacifiers, etc STAINLESS STEEL: interior and racks constructed of 304 stainless steel HOT AIR AUXILIARY DRYING: Uses hot air as drying function and sterilization TEMPERED GLASS DOor: Heat resistant glass door, safe and secure MICRO-COMPUTER toUCH: 3-step timer (15 min / 30 min / 60 min)