What a great little item! Very tough to find, but an absolute necessity, in my opinion. My daughter was cloth-diapered for about 10 months, and these extenders were a godsend in getting her onesie shirts to fit and fasten over her cute puffy diaper. They also fasten very securely --a MUST for active babies! She's now 2 and I'm able to greatly extend the wear of snap-fastening onesie shirts. She's petite yet tall, so such shirts still fit, but are too short to snap closed, due to her height. I love that for cool days, thanks to these extenders, she's cozy, covered and comfy. They launder beautifully in a little mesh laundry bag so as to not get lost in the wash, and with no shrinking either! Bravo, Kidalog!!