An ancient Japanese legend promises that anyone who folds a thousand origami cranes will be granted a wish such as long life, prosperity and good health, and be known to give a thousand years of happiness and prosperity. It is also used as a matchmaking charm for a Japanese girl when she turns 13 years old. She would make 1000 paper cranes and give it to an admired boy. We think folding 1000 origami cranes is a lot of work, though, and suggest buying the Origami Crane mat instead! + The mats are made from a man-made foam, which is phthalate and heavy metal free. + All inks are eco-friendly using soy and/or vegetable-based inks. + The only mat like it in the world, you will be impressed with the thickness and stickiness of this ultra-luxurious yoga mat. +2 ft x 6 ft and 1/4" THICK! + Long lasting and extra sticky!