Hello I would like to know what are the inside dimensions of the drawers of the triple identical drawer officebuddy. So I can know if the boxes I already have can fit in it or If I need to find some other office budy to fit my boxes. There are photos that says the outside height is 15 cm and the heigh of the sides is 10cm, so there would be 5 cm wasted height, or is it just the height of the wall ??? the other photos also indicate an available width of 33cm and depth of 50cm. Are those accurate? Thank you for your help.