Sphering (or zorbing) is the practice of humans traveling in a sphere, generally made of transparent plastic, usually for fun. Sphereing or globe-riding is generally performed on a gentle slope, allowing the rider to roll downhill, but can also be done on a level surface, as well as on water, permitting more rider control. In the absence of hills, at least one vendor has begun constructing metal ramps.Most spheres are constructed for a single rider, but some hold two or three. The longer runs are approximately half a mile.

Product: Zorb Ball
Dimension: 2.5m(outer diameter)*1.7m(inner diameter)
                 2.8m(outer diameter)* 2m(inner diameter)
                 3.2m(outer diameter)*2.4(inner diameter)
Material: PVC/TPU
Accessory: blower and repair kit