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</br>Made from top quality?? durable?? anti-shock?? weather resistant EVA Material.</br>Convenient removable wrist strap for Easy carrying?? + inner mesh pocket for charger and cable</br>Essential Guerrilla accessory kit includes 2 Guerril"pencils?? Guerrilla eraser?? lead refill?? Guerrilla x-y axis Graphing ruler.</br>Also Compatible with calculators that have a slide Case or sil