(B440LR).This is a heavy stapler, and the saddle is nicely shaped for placing your folded stack of paper to receive a perfectly placed staple on the fold

Be sure to line up the edges with the edges of the stapler to get perfectly placed binding!

I always wondered how booklets staples are so perfectly placed.

Not only is it easy to use, but placing the fold of the paper over the angle of the stapler automatically places the staple in the correct place