Putting them on & taking them off:When I first received them, they were stiff, which made it hard to put them on my AirPods. No markings on the product, but the little baggy had a Sennheiser sticker on it. When you just run drills you won?t notice the traction too much as i play indoors. I love this rack so much! I got this set of hooks to replace an oiled bronze set that is no longer available. Maybe if you have the extremely thin line bikes with the ultra thin tires with ultra thin frames, they could possibly work. Better suited outdoor and still a very good speaker for the indoor, i don?t regret it over the bose. Just like I was looking for. He wanted to know how he could use his cell phone on his tractor without having to pull his phone out (I told you hes a techno luddite)I bought these earbuds for him because they got ok reviews and they were not too expensive, just in case he hated them. I never heard about the Hex Bar until a power lifter neighbor of mine told me about it.