Primary Features

• Dual glow bar design
• Titanium alloy ring accessory
• Exquisite and lightweight, designed for everyday use
• Tungsten steel strike bezel design, breaks glass easily, ideal for self-defense
• High-quality Titanium, permanent color, corrosion and scratch resistant finish
• Sturdy and durable, can be worn as a ring or necklace
• Tril Vials glow bar automatically glows in the dark
  
• Luminous tube glow bar can be recharged by any light source with high glow, just shine it less than 3 mins and it can be last more than 3 hours, the best glow bar instead of Tril vials.

Dimensions：

• Length: 26.5mm/1.04in
• Outer diameter: 21.5mm/0.85in
• Inside diameter: 3 options - 22mm (L), 20mm (M) and 18mm (S)

Accessory: Beaded chain