10 carboard storage boxes - 35 cm x 24 cm x 13 cm (Cutteslowe OX2)

I used them for photos. They slide open but with heavy contents the front tends to bend. They stack happily enough. They fold flat which I have done with 8 of them for easier transport and it is pretty obvious how to remake them. They have plastic windows at the front - I think I have all of them in the bag.