I would have thought when you spend nearly $300 on a pair of ear phones the the back up replacement would be the same leather type of Ear pad not this cheap plastic replacement. It goes up in increments of 100 which is enough. These headphones are detailed, meaning they sound excellent with good source recordings converted to FLAC or ALAC lossless digital formats. I purchased this as a cheap, temporary solution to protect my new AirPods Pro while waiting for something more permanent from Catalyst or Spigen to become readably available. I wanted 4 pairs for a family member who was about to undergo surgery and would have a long convalescence. Just received the 8 and they?re long enough. No tears or zipper issues along the way, and the zippers can be locked with a luggage or larger lock due to how wide the holes are. where to begin to say all i want to say. Maybe I got something wrong during the construction of the bars. I wasnt sure the rope or pullies would be able to handle that much weight, but to my surprise, it does so with no issues.