For -TI-84 Plus /TI-84 Plus/TI-Nspire II CAS/TI-Nspire II/TI-83 Plus/TI-89 Titanium/TI-85 / TI-86Specially designed for calculator shell molding, perfect storage designHard EVA material, semi-waterproof, shockproof and durable, protects your mouse from impact and friction.The mouse's hard case is and compact enough to fit in your backpack, , or luggage for added travel protection.Compact Design: Stable hand strap portability, smooth and sturdy 360-degree zipper for easy opening and closing.size: 250 x 100 x 50mmMaterial: EVAcolour: blackPackage Contents:1 x Graphing Calculator bagOnly the above package content, other products are not included.Note: Light reflection 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.