Great product and my Nimbus Steel series controllers for Apple TV fit perfectly. I actually modified the holders and installed them with screws and the included 3m clear sticker should my son pull them. now they are safer. Instructions how I did it: First make a mark in the middle where the screw will be and make sure there is room for the screwdriver you will be using. Don't make the hole too high, make it closer to the ground, about 1/4 inch from the bottom edge. There is also a photo for you to see. Then I took a screw of the same size you will be using to fasten it, it got very hot and tried to penetrate the plastic holders, but the holder is strong plastic and didn't go through. I then took a metal screw and lightly drilled through it. The hole I marked first with a very hot screw helped make it easier to drill as the screw didn't slip, it came out fine. If you use my method. Much luck! The company should get them to mount it with screws and also for people like me who want it extra secure. You should pay me for this idea. lol :)