Liquid Chisel Brush by PÜR The Complexion Authority
Designed to conceal blemishes and under-eye dark circles, this fluffy domed brush head will blend out lines and edges without smudging for maximum coverage.
#BoxyTip: Smooth a small amount of concealer onto desired area. Use the tip of the brush in a buffing motion to blur any lines or streaks.
I enjoy getting brushes.