Brow Zings consist of one colored wax pan, one powder pan, a teeny set of tweezers, and a two-sided brush in a cute little compact. This is all you need to tame or fill in your brows. The early 2000's weren't kind to me and I worshiped at the alter of Christina Aguilera, so my eyebrows are somewhere with a VHS tape with a TRL episode on it...far, far away.
I keep one in my bathroom and another in my purse for quick touch-ups if the Atlanta humidity is particularly brutal, but also because no matter how much time you spend plucking your eyebrows, your rearview mirror will catch the one you missed!