but as stated, it is a solid, quality excercise stationary bike. Out of all of them, this one is the best. My daughter usually wears size 4. I bought these to go with the squat rack they are suppose to work with. Totally wasted my money. Probably the most professional headset for the price. Advertising 3. It was a smooth rubber material, and didnt feel very durable. At $150 there isn’t anything in their price range that’s even close to as good as these(I went to Best Buy, Walmart & target to try different pairs). i just tried this for a change.