High-quality Material: This fidget pop-on-it backpack is made of high-quality silicone materials, safe, smooth surface and very comfortable to the touch. Dimensions : 7.7(L)*4.2(W)inch*8.8(H). Large zipper main compartment for stationery storage Easy to carry : This pop backpack for girls meets the need of storage and fidgeting, and The back of the backpack can be pressed. Ergonomic design: This fidget pop-on-it backpack is ergonomic, with adjustable and detachable shoulder straps. You can adjust its length to suit your height and body type. It relieves the pressure on the shoulders, and it won't sweat after wearing for a long time. Occasion: Our pop fidget casual backpack school bags are very suitable for young teenagers, girls, kids. Great for outdoors, sports, camping, hiking, traveling, picnics, etc.