An exercise and/or play hoop, made of semi-rigid plastic tubing, is partially
filed with water (30) to between and full, most preferably
full. The water improves the dynamics of the hoop and makes it easier to
keep the hoop elevated by gyration. The hoop is made of a length of hoop tube (10)
bent into a circle. A coupling tube (20) is inserted where the ends (11,
12) abut, spanning the joint. The coupling tube includes a bore (25)
through which the liquid flows circumferentially around inside the hoop, and past
the joint. The coupling tube is formed of a hard and strong inner tube and a softer,
somewhat compressible outer sheath which forms a seal with the inside of the hoop
tube. A decorative, preferably iridescent sheet (18) may cover the hoop.
