While flowlights are durable, a hard impact can break the shell in or outside of cases. We highly recommend that flowlights spun as poi are protected in a crystal case or our other flowpoi casings. These cases also enable you to add various weights (flowmass) to your poi heads.
Facets in the crystal line up with the button to enable you to feel the button in the dark. Plus you can activate and change the modes of your flowlights without having to take them out of the crystals.
Inner diameter: 22mm
Outer diameter: 25.5mm
Wall thickness ~ 2mm