Strong and seal securely but even permanent marker doesn't stay on them so you can't write an address and expect it to stay on. Better to get the more expensive ones from tesco that you can write permanently on.
Great at what it does. I don't want a games machine just a portable tablet that allows me to read my books, access email and the web, quickly and with good graphics. Does it all brilliantly. I went for the cheaper with adverts option and have not found them a nuisance. Ads just come up when you swipe in and not when you use it so not intrusive.