Yes isser where the?

I have a black backpack the top has a carrying handle. At each end it handle an eyelet which I actually used for anything else. At each of the two eyes, I have a Trigaglow hooked knows not only where my backpack is in the dark, but also exactly where I have to go to pick it up tires. In addition, you can order - if one pays attention where and how you have left it - assess its own position to the backpack.