VEVOR 0.56 Inch Thick Gym Floor Mats, 12 Tiles Rubber Top with EVA Foam, 25" x 25" Gym Flooring Workout Mats with 48 sq.ft Coverage, Interlocking Puzzle Gym Mats for Gym, Home, Garage, Black & Blue
I did not find any information about harmful chemicals in the product description. However, the mats are made of rubber and EVA foam which are generally considered safe materials.
While the product description doesn't mention anything about outdoor use, customers mostly use it indoors. Many note the mats are high-quality and durable.
