Wonder Mat Quality Multipurpose Anti-Fatigue Extra Thick Mats (Set of 4), Black, 2′ x 2′

Amazon.com Price: $42.99 (as of 14/05/2021 18:56 PST- Details)

4 piece 2′ x 2′ black interlocking mats. Creates 16 square feet. More colors available at eWonderWorld storefront
Its ~9/16″ of an inch thickness meets the minimum protection requirement for children.
Easy do-it-yourself interlocking mats. Lasts up to 5 years under proper care.

Usually ships in 24 hours