Fitness gym ball, approximately 55cm in diameter, with a hand pump for safety. This item has been used, so I wiped it clean, deflated it, and put it back in the box. There is a stain that won't come off, as shown in photo number 6. It's still usable, but I'm selling it because I don't have space for it anymore. Please refrain from purchasing if you are concerned about minor details, as this is a used item. - Brand: sa gear - Product Name: Fitness Gym Ball - Size: Approximately 55cm in diameter - Features: Hand pump included, anti-burst Thank you for viewing.