Look really good, very detailed and stick firmly - they do not peel off wallpaper without ripping it, so I had to be very careful with positioning, but at least they won't fall off. The largest lorry sticker is 18 inches long and 5 inches high, the smallest bike sticker is around 3 inches long and 2.5 inches high, and there is a good mix of sizes in between with most being on the larger size. There is a good variety of stickers (though only 27 of them, not 28 as the item name says), but I wish they were all facing the same direction or were at least an equal split of each - I was creating a traffic queue around the room so had to split it into two lanes to allow for the different directions. My son will love the train as it looks exactly like The Rocket from Postman Pat, and I've put the Royal Mail van next to it. And I love the little bike, I've put it at the front of the queue like it's causing a traffic jam ;-) I wouldn't hesitate to use these again, in fact I might buy a set of planes to finish it off.