Refillable Loose Powder Brush is self-contained, ready to be filled, with a locking mechanism that prevents spilling. Ideal for travel. Easy to refill. Only one jar of Amazing Base Loose Mineral Powder is needed to fill the brush two times! Can be used with Amazing Matte and Powder-Me SPF, too. Simply twist off the base and fill with a skin-loving loose powder using the enclosed scoop. Twist into the open position to allow powder to flow through. Twist into to the locked position when you are finished with your application to prevent spilling. Note: some powder remains in the reservoir even after locking so powder will continue to flow through the brush.