Because I go through nail art brushes relatively fast I prefer to get cheaper ones. I imagine its the pure acetone which eats away at them and ultimately destroys them. This particular set is good, it comes with six brushes and a dotting tool. In addition to this set I would recommend a set of dotting tools in various sizes and a very small brush (0000) for details.
You need not spend a small fortune on equipment, for about £5 you can get all you need. These brushes serve there purpose well and I have used them all other than the fan brush as I am yet to adventure in to that creative world. I'd recommend these ones and once I have managed to destroy my set I will repurchase.
£1.33 - 7pcs