Along the top there is both a rubber grip strip as well as raises aluminum ridges so its not smooth on the top and should provide some grip to things tighted onto it. I probably would have been satisfied if it had actually fit the mic. m670 brn Ultimately, I found other hooks that are more sturdy for a better price. I work in retail and stand/walk for 8-hour shifts. m670 brn Finally, when I pulled the headphones out of my ear one broke open. m670 brn One pair got lost. The space in between shelves is very tight, and while it is technically enough space to fit shoes on. Control and Mic works fine. m670 brn It takes some getting used to, so wear these in shorter walks to start or you could end up with foot pain or blisters. I still gave 2 stars because they appear well made and durable, just disappointing that they wont work for us this year so we are returning them.
m670 brn