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 vents around the house. The bristles strike a perfect balance - stiff enough to remove grime but gentle enough not to damage delicate fins.

The package includes four brushes, which is fantastic because I can dedicate one for appliances, one for car vents, and still have spares. The hole in the handle is a thoughtful touch - I've hung mine on a pegboard in my garage for easy access.

However, the plastic handles do feel a bit flimsy when you're applying pressure. While they haven't broken on me yet, I'm always cautious when scrubbing tougher buildup. For the price though, having four brushes means I'm not too worried if one eventually gives out.

What really impressed me was how well they clean between tight coil spaces without bending the fins. As someone who's accidentally damaged coils with stiffer brushes before, this was a relief. They're also surprisingly good for cleaning window tracks and other narrow spaces around the house.

Would I recommend them? Absolutely - especially for light to medium cleaning tasks. Just don't expect industrial-grade durability from the handles. For occasional home use, they're a steal at this price point.