I've always loved the idea of these wick stickers, but I always had an issue with them - not necessarily with their staying and sticking power, but more with their size. Although they perfectly fit the diameter of the wick base itself, they were so thick that they caused too much wax to remain on the bottom of the candle after the final burns. No more. These "pro" version of the wick stickers are absolutely PERFECT. They are so thin that I nearly had trouble getting them off the paper, which is a good problem to have. They add NO noticeable height to the wicks themselves, and unless you are looking at them from the bottom, you can't even tell they are being used. I just bought both the single and multi wick setter devices, and these are the perfect companion to those devices. If you have been holding back for the same reasons I was, do yourself a favor and TRY these pro stickers out - you won't be disappointed!