SWIFT SAFETY CUTTER WITH HOLSTER & 10 REPLACEMENT BLADES AVALIBLE IN RED OR YELLOW ENCLOSED MOVING BLADE CUTS PLASTIC BANDING, SHRINK WRAP,TWINE, SEAT BELTS AND MORE. TOP STAINLESS STEEL TAPE SLITER OPEN CARTONS, ELIMINATES PRODUCT DAMAGE . CAN ALSO BE USED TO SCORE AND REDUCE BOX SIZES DOUBLE SIDED BLADE LAST 4 TIMES LONGER HOLSTER HOLDS 10 BLADES AND 1 CUTTER HANG OR USE WITH BELT BLADE CHANGING FAST AND EASY training video on line at swiftcutter.com