Let me start by saying these little blue brushes are surprisingly versatile. I've used them to clean my AC unit, fridge coils, and even some dusty corners behind my furniture. The stiff yet flexible bristles are the real MVP here—they dig out dirt without bending delicate fins, which is a huge plus.

The 4-pack is perfect for multitasking. I designated one for appliances, one for car vents, and kept two as backups. The hole in the handle? Genius! I hung them in my utility closet, saving precious drawer space.

Now, the not-so-great part: the plastic handles feel like they could snap if you press too hard. While cleaning my refrigerator coils, I had to be extra gentle. For the price though, you can't complain much—just don't expect industrial-grade durability.

Pro tip: These work wonders for dry dusting but struggle with sticky grime. For heavy-duty jobs, you might need something sturdier. But for routine maintenance? They're a budget-friendly lifesaver that'll likely disappear (literally—they're easy to misplace) before they wear out.