Guerrilla Leather Hard Slide Case-Cover for TI Nspire CX/CX CAS Graphing Calculator, Green Protect Your Graphing Calculator. Please note: Product is a case only. Calculator NOT included. Made from highest quality non- breakable PC plastic/highest grade pu leather Easy "Slide On/Slide Off" Technology Guerrilla is a leading brand of calculator accessories Compatible with the "inspire cx" and "inspire cx-cas" calculators