notchless:Scotch® Magic™ Tape with Notchless™ dispenser：kikuchi-yasukuni architects Inc.

Product features

Notchless™ is an adhesive tape dispenser which leaves clean,
straight edges without zig-zags on cut tape, simply by tearing it
on the edge of a blade in the same easy way as with conventional
tape dispensers.
Adhesive tape without zigzags has an attractive appearance, and it
does not break up when peeled as does tape cut with conventional
dispensers.
It thus has the advantage of not causing stickiness or
dirtiness at the cut edge, increasing the utility of adhesive tape.

Please note

The tape may feel difficult to peel off from the Notchless™ tape
contact surface (curved part); however, this is a part of the cutting
mechanism. The tape needs to be held firmly in place to be cut by
the blade, which does not have a sharp zig-zag edge.

How to replace the tape roll

Take off a transparent cover from one side, and insert the tape roll
after pulling out a small amount of tape off it.
After this, replace the transparent cover while slightly pushing open
the opening part in the aluminum body.

If both of the transparent covers are removed, firstly place one of them
on a flat surface, such as a desk.
Replace the transparent cover while firmly pushing open the opening part of the aluminum body. (Please take care not to damage the transparent cover with the aluminum body.)
The other transparent cover can be replaced by slightly pushing the aluminum body opening part to open it.