I bought this Split Fibre Brush Kit for $15 at MAC online store in August. It was on sale for $15, the regular price is $50.
Currently, it’s sold out. If it’s back in stock, don’t buy it. Both brushes are no better than the drugstore brands like Real Techniques, EcoTools or BH Cosmetics. They are smaller than I expected. And, the bristles are a bit scratchy. At least I didn’t pay $50 for them.
Here is the free sample I chose during checkout. The shipping is free on any purchase.