We purchased these mats before my little ones were even able to walk! We used them on our hardwood floors when my oldest was just learning to crawl and as my little ones got older, we used the mats to identify letters. Now they help us create words, and we’ve got a few under the sand table (inside) to make clean up a bit easier for me!! I can’t say that I paid $89.99 for them, but I definitely paid more than $17.99! Grab a set of foam alphabet play mats for $17.99 SHIPPED! These are great for almost any age, trust me!!