Guerrilla Hard Travel Case for TI-83 Plus, TI-84 Plus, TI-84 Plus Color Edition, TI-89 Titanium, TI-Nspire CX&CX CAS,HP50G Graphing Calculators + Guerrilla's Essential Calculator Accessory Kit, Black Compatible with all Graphing calculators! including ti-83 plus, ti-84 plus, ti-84 plus C silver edition, ti-84 plus CE, ti-89 titanium, ti-nspire cx, ti-nspire cx cas, HP Prime, casio Graphing calculators, and more Made from top quality, durable, anti-shock, weather resistant EVA Material. Convenient removable wrist strap for Easy carrying, + inner mesh pocket for charger and cable Essential Guerrilla accessory kit includes 2 Guerrilla Mechanical pencils, Guerrilla eraser, lead refill, Guerrilla x-y axis Graphing ruler. Also Compatible with calculators that have a slide Case or silicone cover on it. For example, Guerrilla silicone Case for TI calculators. Guerrilla is the #1 Brand of Calculator accessories