I bought the 1 and 1/2 inch barrel and I absolutely LOVE this curling iron! It has an on/off button, and adjustable heat settings. It heats up in a flash - by the time I've got my hair combed out, the iron is hot and ready to go. There is also a cover for the barrel, so when I'm done I can unplug it, put the cover on and throw it back in my basket - no worries about making burn marks on surfaces or melting any plastic I set it down on because of the cover. If you're looking for a curling iron that heats up in a flash, does a beautiful job on your hair, and no wait to put away, this is the curling iron for you. The barrel looks like its coated in teflon or some similar non-stick surface, so hairspray or other styling products wipe off it easily. Also, the cord swivels, so you don't end up with a twisted mess of a cord. There is nothing about this curling iron that isn't awesome. Hats off to Conair - they sure got this one right! It seems to be well made and sturdy enough that I will be using it for (I hope) years to come.