So, the biggest deal, and the sole reason I prefer in-ears over the headphones that cover the ear: The ability to just wear it all day without having discomfort. My daughter is 13 months and we ordered the infant size 2-3 and they fit perfect (with no room to grow) but will probably have to size up within a couple months. She loved them and ran around in them for 2 days without complaining. BUY THEM. I became convinced by the time the programming comes up to speed, my expensive system would be obsolete. 5 and 8 because of sizing issues described by viewers. He used it for a day. Unfortunately, I now need to return them, because they do not fit my 5" pullouts. My fiance and I have rented our house for 2 years and there were new cabinets installed but the shelves were not put up and we didnt see any hardware laying around. Its said to have a 700 lb weight capacity but I wouldnt feel comfortable racking that much.