This could be a model for some exotic triple-stranded alien DNA. Alternatively, it would make a terrifying (one-sided!) roller-coaster ride.
The opening in the bracelet has a diameter of 63 mm or 2.48". This ring is remarkably rigid when made from "strong and flexible plastic". Perhaps not surprising, given that all the struts form many triangles. Take the rigidity into account when sizing, the opening will not flex at all.