I was hesitant to purchase because of reviewers claiming they are tight fitting or uncomfortable, but that simply wasnt the case for me! Remember when Tom Hanks character in the Green Mile was able to pee for the first time after being cured? It was like that. - Back Base Tube- Front Base Tube- Back Stand Tube- Front Stand Adjustable Tube + fasteners & locking pinAlso, the cushion is a bit on the hard side but I am hoping a few nights with some weight sitting on it should fix that problem. They have been worn & it is CLEARLY noticeable. I like the over the ear function. The only difference in these that I can see is, they changed 4 small clear inserts on the sides of each heel to just an indent molded into the black rubber. I will surely be ordering more. Audio instructions are quite annoying. Overall I would have given 5 stars but the only negative is that I found the options a bit confusing as to which to get, oval or round or XL etc. I thought my kit was messed up, but instead plugged in an older pair of these and noticed not only a clear rolling bass, but all of the sounds were much fuller and richer.