Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Does anyone know what the difference is...

...between the sometimes slightly more and sometimes immensely more expensive 3M-1626 pictured here and the 3M-1626W dressings? The descriptions appear to be the same, but I have yet to find anyone comparing the two for differences in quality that would justify the range of expense. I've never had the 1626W in hand to see if it is good enough to hold on medicinal patches as well as the 1626. A RAPID response would be greatly appreciated. The only problem I have with the 1626 is the expense. I hadn't noticed the 1626W until today and my supply is running out. I would love to know what the difference is today, if possible, since I would like to purchase an order tonite.THANKS IF ANYONE CAN HELP!