I have had these four several years and use them in my basement for my workout area. They are great and have held up after many years. No rips, tears, or breakdown of plastic material. I have 2 treadmills and did not place the equipment on the square, however I do have a step and weighed bars that are stored on the mats. They do leave dents from the weight, but will reshape after removing the weight. Would definitely recommend.
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