Is the stuff included?

Hi,the package contains only one pencil case, and the stationery in the picture is only for capacity reference.

Can this pencil case hold a calculator ?

Hi,the size of this pencil case is: 9*4.3*2.4in, it can easily hold a calculator and a 20cm ruler.

How many pens/pencils can it fit?

It can hold up to 80 pencils, and can easily hold a calculator and a 20cm ruler