Shark Tooth Yoga Mats
Many sharks lose more than 35,000 teeth during their lifetime. Some sharks have bone-and-cartilage crushing dense flattened teeth while others have powerful gripping long needle-like teeth. There are also sharks that have cutting serrated teeth, while others have non-functional teeth. If you cannot walk along a beach to look for ones that have washed ashore, then exercise on a shark tooth yoga mat.