They had become stained over time, and the edges were split and shaggy.
They even had holes in places. Santa listened to this quilter's wish list. I would say that considering the continued use that these have seen, after almost 25 years, Olfa should be commended for creating such a sturdy and well made product that stands the test of time. The new mats are fancy; they have lots more markings (increments) arcs and angles than their predecessors. If they could only do something about the obnoxious "new mat" rubber aroma. I may try spritzing them with a white vinegar and water solution. I have the essential oil diffuser working overtime right now, I know the Eau-de-mat smell will dissipate over time. I assured Santa Claus that I won't need new mats ever again, or at least before I am 88 years old, if the longevity of the previous mats is any indication! I am certain that the elves were relieved to hear that, I know that these were unwieldy to load in and out of the sleigh.
Life is Good!