You probably don't really need a box of beautifully designed stickers - who does? - but in my view, they save you money. Decorate a parcel with these, write the address and the return address neatly, seal it with decorative Sellotape and it'll arrive in good shape. It shows the postal services that you care about the contents and they'll respect your views. That's my theory and that's why I'll continue to buy them.
They are beautifully designed, varied, a bit on the twee side (some of them) and I've yet to find a use for some of the odd sizes. They are also wildly overpackaged. The bottom half the box is air, and each size is wrapped up with yet another band of annoying sticky stuff to hold it neatly in place. But if you take out the false bottom of the box you get a good piece of packaging that you can use to wrap up a birthday present. If you just got the stickers you'd probably pay a third of the price. Ecologically, it's not good to have shipped all that over from China, where they are manufactured, to the US, where they are published and back to the UK where I use them to address packages to China and the US.
Anyway, they're pretty and if you like to go to extra lengths to make your parcels stand out amongst the crowd, this box, and its partners from the same manufacturers, will do the business.