As you can see from the photos, its perfect and ten times cheaper than the elfa system. Here’s he scenario. I don’t normally wear earrings cause they tend to bother my ears. I have a big, and expensive, Note 4. They have alotof space for fresh air getting to the foot. Took maybe 15 min to install - no swearing required. I will be ordering another pair for other outside activities besides work. *I am very easily distracted, but with a pair of earplugs + these at a moderate volume, I couldn’t hear anything from my coworker who was next to me and on the phone all day! The molded recess to prevent the nut from turning does a poor job. Good quality and good fit