What it is: A double-ended brush with a cooling rollerball tip that helps depuff and sculpt instantly while super plush synthetic bristles blend and set powder.What Else You Need to Know: The innovative cooling rollerball tip sculpts and depuffs so skin appears prepped and lifted before makeup application. It is formulated with cruelty-free synthetic bristles that mimic real hair and offer an unbelievably soft touch. The full fluffy head has the ideal density to deliver a soft, diffused powder application.