This item came as an accessory with something I purchased, but I don't plan to use it, so I'm offering it for sale to anyone who needs it. It seems to be something you attach to a fishing vest for night surfing, to be visible from behind. Multifunction LED light with green, blue, and red lighting functions. - Brand: ZEXUS - Model: ZX-135 - Color: Black - Function: LED light - Function: LED light - Accessories: Carabiner Thank you for looking. I believe it's in good condition, but please understand that it is a used item before purchasing.