Sturdy and effective! This Super Snooper actually works so be careful what you are saying behind your child's back! It's easy to use and fun. Having said all this my daughter doesn't actually get it out to play with all that much. Normally it comes out when she has a friend round to play - and I can hear whispers, giggling and plotting going on upstairs and then notice the plastic funnel sticking round the kitchen door! I don't think me making tea is the most exciting topic to spy on - but it seems to keep them amused!