Price negotiable. The RAKUWA NECK SPORTS, using MICRO TITAN BALL, is a necklace that supports your health. - Brand: Phiten - Model Name: RAKUWA NECK S - Features: MICRO TITAN BALL - Size: Approximately 5mm wide - Color: Yellow New, unused. The packaging is slightly yellowed because it has been stored in a cardboard box, but the contents are in good condition. Thank you for looking.