The 1/4" staples are compatible with the Spec Ops M68E Plier Stapler. These heavy-duty, galvanized staples were designed with power crown for extreme holding power to handle stapling heavier applications such as cardboard boxes. The crowned design of the staples makes them perfect for stapling boxes or packages together for storage. With each Spec Ops Tools purchase made, We support our nation's heroes by donating 3% of proceeds to veteran and first responder causes.The 1/4" staples are compatible with the Spec Ops M68E Plier Stapler. These heavy-duty, galvanized staples were designed with power crown for extreme holding power to handle stapling heavier applications such as cardboard boxes.