Sunrise Imports - Heavy Duty Staplers $27.00
When I was looking I found these to be very expensive at the usual stationery suppliers.
Great for the home office or university notes when you need to staple a bunch of sheets. Also has an adjustable guide to change the location of the staples. You need to buy heavy duty staples. Various sizes available from $4 a box (10mm x 8mm - Model: to119) and $7.50 a box (12mm X 8mm - Model: to118)
Australia Buyer : $10 Flat Rate shipping Australia Wide