50 22" Premium Glow Necklaces, Extra Thick 7mm Diameter (Tri-Color Mix) 50 22" long, extra thick 7mm diameter, premium USglow Laboratories brand glow necklaces. Thickest 22" glow necklaces available (7mm vs standard 6mm), resulting in 20% brighter glowing. Mixed tri color lot including pink/green/blue, red/white/blue, purple/red/pink, purple/yellow/green, and purple/blue/pink. Long lasting, bright glow duration. Factory fresh with 2+ year shelf life (includes label with Best by Date).