Keyroad KR973310 Scientific Calculator has 240 Functions and is perfect for school students. Statistical Calculations with STAT-Data Editor.. 10+2 Digits with 2-Line Textbook style easy to understand display. Dual power Solar and Battery. Auto/Manual power off. Sliding protective cover. 2-Line display. Constructed of ABS Plastic material. Product Dimensions: 6.29 x 3.14 x 0.47 Inches / 160 × 80 × 12 mm.