What it is: jane iredale Refill-Me Refillable Loose Powder Brush is a mess-free way to apply loose power and get exceptional coverage on the go.What it does: Ideal for travel, the self-contained powder is locked inside the goat-and-pony-hair brush to prevent any spilling. It's easy to refill, too, and you can refill it twice with only a single jar of Amazing Base Loose Mineral Powder (sold separately).How to use: Simply twist off the base and fill with a loose powder using the enclosed scoop. Twist into the open position to allow powder to flow through. Twist into the locked position when you are finished with your application to prevent spilling. Some powder will remain in the reservoir even after locking, so powder will continue to flow through the brush. Style Name:Jane Iredale Refill-Me Refillable Loose Powder Brush. Style Number: 721822. Available in stores.