They inflate to a full, voluptuous round shape instead of the usual more oblong shape of most "round" balloons. Their necks are also thin enough compared to their bodies that it creates a very shapely negative curve when the balloon is overinflated, but still wide enough that you can neck the living hell out of the balloon without having to worry too much about accidentally popping it. The latex of these balloons is also quite thick and durable. I had a couple of these balloons that had what looked like fatal weakspots, but those weakspots were still thick enough that I was able to overinflate the hell out of the balloons without them being unstable or popping. These balloons also have a smooth, silky, sensual feeling to them and a faint sweet aroma that is just heavenly.
God, these balloons are simply delectable. ~__~