I recently purchased a PSM 200 unit, and needed ear pieces for the E2 headphones. I had previously purchased Vater earplugs very similar to these, and liked the way they fit my ears, so I ordered these from Sweetwater. Tje product I received was exactly what I was hoping for. Great noise reduction, and reat fit. I ride motorcycles, and use earplugs when riding. I have had trouble with fitting earplugs as the opening to my left ear canal is very narrow. Moisten these up a little, and the slide right in and stay put.
I also wanted to mention that this is my first sweetwater order. I placed my order online on a Tuesday evening, and a little before 9am the next day, Robby called me to confirm my order and chat. I am most impressed with the customer service level Sweetwater provides. They have made a customer for life!