See and be Seen: The USB Glostick works great as a safety beacon and doubles as a lightweight water-resistant flashlight. Upgrade your GloStick USB to the GloStick Multi-Clip. A 360-degree rotating attachment point provides two options to take your GloStick to the next level. Attach it to your bike or hiking staff with the elastic Unisleeve band or fasten it to your backpack or PFD with the molded clip. Modes: bright, dim, flashing, and SOS.