X-Circles / tape dispenser

1.The concentric circles boards stacked on the top of the adhesive tape dispenser make it easy for users to assemble any specific sized adhesive tapes according to their needs.
2.The L-shaped jig helps to fasten the dispenser to a plane surface so as to enable single-handed operation of the dispenser .
3.There is a hidden sawtooth placed to the cutting edge of the dispenser. When the adhesive tape is pulled to cross the cutting edge, the tape would be easily cut off by the sawtooth based on lever principle.