Constructed of high-quality, professional-grade materials and won't pop if punctured. Instead, they deflate slowly, significantly reducing the risk of injuries if a puncture occurs while in use.  Includes a pump for inflation and a tape measure that makes it easy to tell when you've added the right amount of air. Sold individually. Features:

• Available in two sizes
  • 55 cm - Color: Silver
  • 65 cm - Color: Black
• Won't pop on puncture
• Includes pump for inflation
• Includes tape measure to inflate to correct size