Belt Loop Folder #C30> With the Belt Loop Folder #C30, you can easily create 10 mm, 15 mm or 20 mm wide belt loops, ribbons or straps from straight-cut tapes without ironing or pinning. The Belt Loop Folder #C30 is available in three different sizes: Belt Loop Folder #C30-10/20 mm Belt Loop Folder #C30-15/30 mm Belt Loop Folder #C30-20/40 mm