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Our crawlspace is the site of our house heating system. It is covered with sharp gravel. We and our technicians are now grateful of having 2 of the mats upon which to crawl our way to change filters, do maintenance repairs.
Purchased these to use a fatigue matts infront of some meatal working machines. I would have given 5 stars but one of the three rubber matts I purchased was very hard and actually cracked when I tried to unroll it so I had to return it.
Don't get where everyone is complaining about a rubber smell-? I opened the box and bag and there was no overwhelming scent permeating throughout my home. Maybe these people are too scent sensitive or live in a land where plastic and chemicals are not in our everyday products,I'd like to live in that world too - can I join you? Let's go uber organic and use wooden wheels for car tires. I'm using this on our balcony - it's perfect for keeping the paws dry in the drizzly and gusty PNW.