To use this eye refill, first, open the compact and take out the old refill if there is one. Then, gently place the new 2 - color refill into the empty slot. When applying, use an eyeshadow brush to pick up the color and sweep it across your eyelids. For a more intense look, press the brush onto the lid. Remember to keep the compact in a cool, dry place to prevent the eyeshadow from drying out. Also, avoid getting water on the refill as it may damage the product. If you want to clean the compact, use a soft, dry cloth to wipe it gently.