It claims it can hold 10 sheets at once but the one I got does not. See the photo. Does the job as long as you don’t mind only punching 3 pages at a time.
Tried doing 5 sheets of 20# paper and it jammed. Had to rip the paper out. Ended up doing one sheet at a time. Also the holes are close to the edge of the paper. Would return it if I didn’t have to drive so far.
This three punch hole punch works pretty good but not great with more than 5 or 6 pages. Paper tends to get backed up at the punch sites and needs cleaning out very often but it does do a good job once cleared of previous paper bits.