This is the MAC 143S Bronzer brush and it retails for $45.00. This is a synthetic brush designed to apply and blend bronzing formulas. I have used this with both Mac products as well as other brands and didn’t experience any issues. The bristles are soft and densely packed. Works with powder formulas. This effortlessly blends out powders, really diffusing the edges nicely. I haven’t had any issues with shedding. I used it for a month so far and cleaned it many times. It has held its shape with no problems.