This is a flat cable cover made by ELECOM. I used it for about a year, but I no longer need it due to moving, so I'm selling it. The length is 1 meter, and the width is 17mm. It can fit two standard LAN cables. Out of 15 pieces, 1 is unopened and unused. The remaining 14 pieces and 6 cut pieces were used by attaching them with push pins, so the adhesive tape on the back has not been used. There is no noticeable dirt on the surface. The back has some dirt and holes from the push pins, but it won't be a problem whether you use double-sided tape or push pins (see images). I'm including 5 corner parts as a bonus. If you don't need them, please let me know in the comments.