The K1 stapler by Rapid is the original classic. Still made with all steel construction, and still made in Sweden. USES either 1/4 inch staples or 5/16 inch staples for stapling up to 50 sheets of paper. Use standard 1/4" staples (Rapid Item 73782) for 2 - 20 sheets or high capacity 5/16" staples (Rapid Item 90003) for 20 - 50 sheets. The Rapid K1 stapler has long been used by florists, restaurants, teachers, office workers and others who require consistent, worry free stapling. The ergonomic handle is comfortable to grip. Easily loads from the back. Anvil adjusts with a push of a button to switch from stapling to pinning. Excellent for all your fastening needs, from light to heavy duty. Multipurpose stapler for professional or home use. Rapid has spent over 70 years developing tools that are leaders in their field with Swedish quality and excellence. If you're looking for the sturdy stapler you remember seeing in hardware stores in the 80S, your search is over. This is the stapler you've been looking for.