The zipper calculator is the perfect carry case for any graphing calculator. It is strong, , anti-shock, The wrist strap allows for more convenient transportation. Some of the calculators that the case will fit are: TI-83 Plus, TI-84 Plus , TI-84 plus, Ti-84 plus C silver edition, TI-84 Plus Color Edition, TI-89 Titanium, HP50G Graphing Calculators etc. . The hard zipper case has a zippered mesh pocket on the cap to secure the charging . The accessory kit can fit in the pocket as well. The main compartment has an elastic strap to better protect the calculator. Convenient wrist strap for easy carrying, and the built-in mesh pocket for the charger and cable accessory Essential kit includes mechanical pencil, rubber, weatSeu material. With soft interior with knit layer inner pockets for cable / USB connector. Kit accessories includes the essential mechanical pencil, rubber, ruler graphics can be placed on the as well. colour: black Material: EVA size: 21.5*11.5cm Package Contents: 1 * Graphing Calculator Hard Carrying Travel Storage Case Bag Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.