The larger version of "Katao," "MAX Katao," is a peanut-shaped myofascial release ball. It provides a wide, deep, and firm massage. It's firmer than "MAX Yawako," with a hardness similar to a soft baseball. Like a foam roller, you can simply roll it over areas of concern to release fascia and relieve stiffness. It can also be used as a stretch ball. - Brand: La-Vie - Model Name: MAX Katao - Quantity: 1 piece - How to Use: Can be used for back and waist massage - Features: Compact size, easy to carry - Hardness: Firm Thank you for viewing.