The AVENT iQ is a mains operated steriliser which has a very speedy 6 minute cycle, it holds 6 standard bottles and a breast pump and accessories. This steriliser isn't the cheapest one on the market but i think it is the best. I like the day and night mode it keeps the contents sterile for 6 – 24 hours! This is very handy if you are disorganised like me and means i can just have my bottles ready to make up as and when i need them. This steriliser not only works brilliantly but it looks fantastic on your kitchen worktop! It is the Rolls Royce of the steriliser world!