Whether your child is tumbling, practicing yoga, exercising, or stretching, this Merrithew exercise mat is the perfect companion. It’s 4mm thick and features a grippy, non-slip surface to support your little one and keep them sturdy and safe. It’s made from eco-friendly and biodegradable PER that’s free from toxins, heavy metals, and phthalates for a kid-friendly use. | Merrithew Eco-Friendly Kids Exercise Mat - 4mm - Dinoland Blue