Xspec's Interlocking EVA Flooring Mats are constructed from durable, and non-toxic, eco-friendly EVA foam which is perfect for trade shows, playrooms, daycares, kitchens, and swimming pools. Each kit comes with (25) 24" x 24" x 3/8" interlocking padded tiles for a total of 100 sq ft of coverage. Other sellers are selling lower quality and less quantity for about the same price. These are a great addition to your home gym and provides you with a comfortable spot to do floor exercises such as gymnastics, tumbling, wrestling, yoga, and more! The interlocking system easily locks and comes apart, so you will no longer have trouble transporting the mat to and from gymnastics or sporting.