This is an original massage ball set from a famous fascia release studio in Tokyo. Set of 2. Purchased last year for home use and is in near-new condition. Color: Black Size: Approximately 6cm in diameter It's not too hard, nor too soft like overseas products, and seems suitable for fascia release. Made by Mikasa, a well-known Japanese manufacturer, each ball is carefully crafted. The price is a bit high, but it's a tool designed for the Japanese physique. Recommended for those with sensitive skin and health-conscious individuals.