The ring is resettable with special equipment for its reset. The pressurized return mechanism is released only when a static load of 105kg applied farthest from the panel, the upper end of the collar. After the release, it returns automatically and instantly to its original position. They are made of steel, of circular cross section, diameter 18mm, weight with a smooth surface and paint color orange (PAL 2003). At the bottom of the ring there are hooks for hanging the net.
The net has a circular cross section with twelve (-12-) loops and braided with nodes in eight (-8) rows. Mounted along with the ring has a total height 400-450mm. The construction material is polypropylene with thickness of 8mm, color white.