This one is for Isabella (3)the girls each picked the ballerina they wanted and the colors they wanted on them. Her mommy had bought a nylon bag from the school which had coording rather than straps. I thought the straps would be more comfortable when used like a backpack. It has triangles of leather in the lower corners to help support the grommets. It is a very simple concept and was really quite easy to do. I am giving it to her tonight, her class is tomorrow.