These mats are great for my purpose - to create a soft play area on a wooden floor, for Early Years Music Groups. I have recently bought 9 sets of 16 square feet all together, making a really spacious area for groups of 16 children with their parents or carers. They are light and portable, easy to pick up and put down, and really nice and warm to sit or kneel on. The only problem is finding bags to transport them - even those huge checked laundry bags are just a bit small, so it's awkward to fit them in easily. Apart from that they are fantastic, as long as they continue to wear well!