About the Product A flat top brush with blended fibers, can be used to blend powder, cream or liquid products onto the skin, to create soft layers or add textures. HQD01 is made from a blend of blue squirrel hair and saikoho goat hair. HQD02 is made from a blend of blue hair and saikoho goat hair. HQD03 is made from a blend of weasel hair and saikoho goat hair. HQD04 is made from a blend of weasel hair and saikoho goat hair. HQD05 is made from a blend of silver fox hair and saikoho goat hair. HQD06 is made from a blend of silver fox hair and saikoho goat hair. Features African rosewood handle with copper ferrule, looks quaint and elegant. Please allow about 1 mm error due to manual measurement. How to Identify Natural Hair and Synthetic Hair Method 1: Burn it, if it smells like we burn human hair, then it is natural hair; if it smells like we burn plastic, then it is synthetic hair. Method 2: Wash it, after dry, the synthetic hair will be almost the same as before, but the natural hair will get fluffy if you don't shape it. Tips: If you don't want the natural hair to be too fluffy, please wrap it with facial tissue after wash, and also for big brush, you could use the brush guard net that we send to shape it. How to Clean Clean your brush before using it the first time. For daily cleaning routine, consider using a mild brush cleaner. Use the following method to keep your brush clean. We recommend weekly cleaning. 1. Use the warm running water, (being careful not to fully immerse the base of the bristles) to get rid of as much product as possible. Try using your fingers to get rid of any bits lodged toward the base of the brush head. 2. Place a pea-sized drop of brush cleanser(or any mild cleanser like baby shampoo) in the palm of your hand. 3. Swirl the bristles in the cleanser in a circular motion until the brush is fully lathered. 4. Rinse the bristles, squeezing from the base to the tips to remove excess water. 5. Repeat until the water runs clear and all makeup is removed from the brush. 6. Reshape the bristles to their original form and then use a lint-free cloth to dry each of the brushes, or you can let them air dry and place them on a cloth. You can also gently brush bristles on paper towel to remove buildup. Or you can use the brush protective net to keep the brush shape when the brush is almost dry. Tip: Wash brushes at night so they are dry and ready for use in the morning.