Hi Sarah and Hammies... you asked what a Professional Snail Centre is , well it's a unit you can buy to keep your Giant African Land Snails in. As long as they're bigger than 2cm, this is the home for them! It's different from a tank in that the base is separate and so it's much easier to clean. My snails seem to be much more active in here and you can see them really well through the see-through sides. The place that sells them has got more details on the website, here's the link
Small-Life Supplies for stick insects and cages