Since its introduction, the Franny Pack has been a big hit with teachers around the country! The Franny Pack fits any size overhead projector and attaches by an adjustable, cinch-type, "fanny pack" buckle. It has clear plastic pockets on 3 sides-- the fourth side is open to allow for air circulation for the fan. One side has a large pocket to hold transparencies, another side has two pockets, and the third has 3 pockets to hold your smaller overhead materials.