Radar Asteroid Ski TubeRadar Asteroid Ski Tube Perfect for riders who want speed and stability in one package. The Asteroid's unique shape delivers impressive top water performance, while the donut bolster keeps you planted on the surface rather than catching air unexpectedly. This is your tube if you're looking for confident, predictable rides at pace. Ideal for intermediate to advanced riders who've mastered the basics and want a tube that rewards good technique. Works