The PINSTOP has worked beautifully. I have used it on concrete, wood and marble-like flooring with absolutely no problems.

I was interested in the potential acoustic benefits of the PINSTOP. My experience has been that the plastic PINSTOP enhances resonance, closer to the acoustics of a hardwood surface. And such a simple design, easy to carry, store and use.

As a cellist and cello teacher, I have tried a lot of end pin holders in the past 30 years. The great advantage of the Pinstop is the adhesive. It really sticks on all kinds of floor surfaces, even when they aren't completely clean. It has been a life-saver at church or school concerts. The Pinstop is conveniently small and fits into any case or cello bag.