I never ended up using this after I bought it, but I've opened and closed it 3 or 4 times. It's in beautiful condition, but I've thrown away the box. The instruction manual is included. Multifunction calculator, silver CASIO BF-480, featuring flat keys and a large LCD screen. - Brand: CASIO - Model: BF-480 - Function: Multifunction calculator - Color: Silver - Button layout: Flat keys - Display: Large LCD screen Thank you for looking.