1)Crust Material:Plastic2)Including 12-digit calculators3)use batteries:LR44,DC1.5V,one piece4)Have addition,decrease,multiply,except,percent,extract5)Crust colors:white,silvery white,gray,etc6)Size:14x12.5x3.7cmPacking :bubble bag/box/inner carton/outer carton 160 pcs/outer carton 2inner carton /outer cartonCarton Dimensions :59X39.5X57.2cm ; Gross Weight:35kg/boxVolume:0.133CBM producing area:China payment:T/T supplying capacity:3600PCS/DAY