Perfect Fit for Multiple TI Scientific and Financial ModelsThis hard storage case for texas instruments calculator is compatible with TI-30Xa / TI BA II Plus/TI-30XIIS /TI-30XS MultiView/TI-36X Pro, providing a snug fit and reliable protection. From the texas instruments ti 36x pro to the ti 30xiis scientific calculator, the interior adjusts securely to your texas graphing calculator . Great for protecting your ba ii plus calculator case during school, exams, or business travel.Soft Velvet Lining and Elastic Strap Secure Your Texas CalculatorInside the ti 36 pro calculator case, a plush velvet lining cushions your calculator texas instruments from shocks and scratches. A durable elastic band keeps your texas instrument ti-30xa or ti baii plus calculator case firmly in place. Whether youre using a ti30xs scientific calculator or a ti 36x pro scientific calculator, this carrying case for texas scientific calculators ensures lasting protection during school or office use.This hard case designed for calculator casio fx 991 keeps your casio fx-991ex safe, convenient and lightweight. The classic zipper design makes it easy to open and close. This casio fx-991ex hard case can better protect your device. It is very practical and convenient.This casio scientific calculators hard shell case is made of high quality EVA material, which is shockproof, dustproof and waterproof, it can protect your casio 115es plus calculator from shocks and splashes when you go out to carry. Put the casio fx 115 in the box after using the casio fx 115es plus at home to prevent the casio fx 115 calculator from accumulating dust.This hard case designed for casio scientific calculators is very easy to carry and use. Whether you're at work or at home, just unzip the hard case and take out the casio calculator fx 115es plus and you're ready to go anywhere. The long-term protection of the device by the case also greatly extends the life of the casio calculator fx 991 ex (note: only the case is sold, ti-30x iis scientific calculators and accessories are not included).