With die-cast heating element Mini and portable design Ideal for heat preservation Made of iron Easy to clean,Compact and portable Diamenter:185mm(150mm for 4 tube) AC220-240V/110V 50-60Hz POWER:2250/2500W, N.W:2.2KG G.W:2.6KG Quantity(20’):1817 Quantity(40’):3634 Quantity(40HQ’):4576