Product details:

The TB-S20AP boasts a punch capacity of up to 20 sheets (20# paper) at once, which is made even easier with its full handlebar that allows for left-handed, right-handed, or two-handed operation! Its lightweight design allows it to be portable within a workspace, making the TB-S20AP an excellent addition to any school or small office environment. This binding machine utilizes 4:1 pitch plastic binding coils which can be inserted by either using the rapidly spinning electric coil roller on top of the machine or manually twisting them into the document. Bind documents up to 2 thick.