The ever popular "Monster Ringer" bead design now in Hyperglow, glow in the dark material. This new product that is made in the USA, not only has a outstanding glow qualities (HOURS of visible glow from a short light charge!) but it is also the same color in daylight! That's right, true green color, with true green glow! No more weird white/green daytime color! These are 1/2" diameter and 3/4" long with a 1/4" through hole.