Staples Arc Desktop Paper Hole Punch Black Gray 8 Sheet Capacity Letter Format

This thing is in great shape.  It easily punched holes in 4 index cards.  I don't have a box nor any instructions.  Note the one photo of the shape of the holes made on the index cards.  They are not circular.  I don't know if there is an adjustment or not.

There is a slider switch on the top of the handle to lock the punch arm in down position.

There is also a slider to align various size papers.