Radar Orbit Ski TubeRadar Orbit Ski Tube Perfect for groups of four who want high speed thrills without the learning curve, the Orbit delivers responsive handling that rewards aggressive riding while keeping you stable and in control. The oversized 112 inch round design gives you plenty of grip and confidence at speed, whether you're behind a ski boat or wakeboard boat. The reinforced bolster keeps you locked in through sharp turns and big pulls, so you can focus on