BUNDLE INCLUES:Three Replacement Blades In Storage Case and One Two Inch Heavy Weight Tape Dispenser with Three Inch Core and two seperate one inch core rollers to accomodate either two one inch tapes or one two inch tape. ONE HANDED USE:The heavy weighted non-skid bottom allows you to pull and cut tape while bracing the dispenser with one finger. MULTIPLE SIZE TAPE:Accomodate two of one inch tape rolls or one of two inch tape, all rolls need three inch core. Just lift the core spidle out and change your tape in a few seconds.ULTRA SHARP:Cuts the tape with precision and holds the edge for extended use. The blades can be replaced by pulling out with a needle nose plyers. Three extra blades provided for many years of use MAKES YOUR WORK EASIER:Packing many boxes in the warehouse, wrapping gifts or any use imaginable your job will be made easier with this tape dispenser.