Radhesive strips are better than nano tape.
The marker holders are fine. I really was enjoying the use of the Radhesive strips. They have a good stick to them. But what I like is that the stickiness can be adjusted to suit the job by rubbing them against some cloth. And soap isn't necessary for cleaning them - just cold water. After 3 weeks of use, one of the strips has a tear. This is due to the forceful tugging needed to remove the strips from the marker holder. Sometimes the markers fall to the ground because of a loss of contact with the marker holder. This isn't due to loss of stickiness, but a contact/positioning error when placing the strip against the marker holder. There's a small gap of air present when I place the tape over my markers and then onto the marker holder. Even considering this, it holds up better than the double sided nano tape.
Rating: 5 stars