Glow Rhino Spark Glow Fobs. The Spark is the smallest and most economical of the Glow Fobs. Purchase a 1 or 3 pack in green or blue tritium. Or purchase a highly discounted 5 pack with the following colors: green blue purple yellow and red Buy for yourself and your family & friends around you. Specifications for Glow Rhino Spark Glow Fobs: Manufacturer: Glow Rhino Color: Green Quantity: 1 Weight: 0.01 lb Length: 0.83 in Features of Glow Rhino Spark Glow Fob: Glow Rhino Spark Glow Fobs 1 Cylindrical Tritium Lamp/unit Injection Molded Polycarbonate Casing Glass Breaker Tip Keychain Hole / Lanyard Loop Keyring Waterproof Package Contents: Glow Rhino Spark Glow Fobs