They were for my own use. These shoes came with someones nasty/ dirty insoles in them ! Easy to set up, and works very well. But cracking open an HP by removing the bottom is a delicate task if you dont have the right tools (which I do) and dont want to leave any markings on the outside of the machine. Everyones main concern is size, comfort, and quality, and I will tell you that Im actually very surprised! Im doing a comparison review between this Bugani and my Aukey that Ive had for several years. I returned this and ordered a true Beats version from the Apple store (not available on Amazon). Each of the plastic rings is molded to the boat and are strong so that they can hold the paddles and possibly an anchor if needed. Lovely gift item for my daughter who is a big fan of Riverdale. It was hard to find the software on their website to update the firmware and change the EQ.