I have both a skull ๐ and co-handles. One for the joycons I bought when they first came out and the other for the pro controller. I bought joycon buttons first, they are great, so later I decided to use professional controller buttons. I posted both reviews and photos here because I was given the pro controller knobs. People have complained that they can't put it on, yes the pro controller grips are more difficult to put on than the joy con grips, but keep looking at the photos just have to be very patient and line them up perfectly, this takes a few tries. Also, before ordering grips, make sure you are ordering the correct ones and carefully read what is posted above the pictures where it says "Joy Con Controller" and "Pro Controller". Joy Cons grips are not suitable for professional controllers as they are much smaller. I don't know why people have a hard time putting them on a professional controller, they are great. I love Skull & Co for what they did with the Nintendo Switch skull and the co grip which is awesome, probably the best Nintendo Switch grip ever.