I am able to fit all types of carriers on it, such as soft structured carriers, woven wraps, ring slings & mei tais. To make things easier I would recommend the manufacturer individually package and label the different kinds of bolts and washers. Im very picky when it comes to technology shopping. If you?re looking for the good reliable device and for a low cost I recommend these! When I read the words, I hear them in my mind in Seinfelds voice . These are a very cost effective dupe to actual Rothys. These ESPlash sneakers can be worn on the sand and can also withstand the water. I am slim and therefore this effect is exaggerated due to my natural form. And they are sooooo comfy to walk in, and even just sitting at my desk. All my files are in flac format and no issues there either.