Show your best with GBC Surebind's professional, book like finish. Documents bound with GBC SureBind Hot Knife Binding Strips are great for filing, stacking and mailing. With GBC's patented Hot Knife binding technology, spines permanently lock pages into place to keep reports and proposals secure. These SureBind Binding Strips include 10 pins (for 11" books) and are compatible with GBC's 19 hole CombBind Punching Pattern. These GBC SureBind Binding Strips are designed for use with GBC's line of Hot Knife SureBind Binding Systems including the GBC SureBind System One , GBC SureBind System Two , GBC SureBind System Three Pro and GBC SureBind System Four "Bind".