Saikoho quality goat hair plus blue squirrel hair, very soft on your skin. K205: Small highlighter brush, this small rounded brush has soft fibers that form a dome shape, is suitable for highlighting T zone. For its small size, you could also use it for eye shadow base. Pick up some highlight powder with the brush, apply it on T zone could have a sculpting effect. Size: whole length 150 mm; hair length 23 mm; hair width 15 mm. K208: Highlighter brush, this tapered flat brush is suitable for highlighting T zone. Pick up some highlight powder with the brush, apply it on T zone could have a sculpting effect. For its small size, you could also use it for eye shadow base. Size: whole length 152 mm; hair length 25 mm; hair width 18 mm. K222: Eye shadow blending brush, this rounded brush has soft fibers that form a dome shape, enables you to achieve natural blending of colors. Blend eye shadow along the contour of eye with the brush, to create natural and even color gradation. Size: whole length 150 mm; hair length 15 mm; hair width 7.5 mm. K242: Small eye shadow brush, this small brush has a rounded edge with smooth, firm, soft fibers, for precise shading on the lid. Pick up some eye shadow, apply it on exact area you want to shade, and blend it. Size: whole length 145 mm; hair length 9 mm; hair width 6 mm. K252: Eye shadow brush, a soft and smooth brush with a rounded edge, to shade or blend eye shadow. Pick up some eye shadow with the tips of hair, apply it on lids and blend it. Size: whole length 146 mm; hair length 11 mm; hair width 9 mm. K253: Eyeliner brush, this brush has short, slightly rounded hair, good for applying gel liner in the crease of your eyes. The small shape of this brush offers precise definition, can be used to line and smudge around the lash line. Size: whole length 143 mm; hair length 6 mm; hair width 8 mm. K255: Eye shadow blending brush, a small tapered shadow-blending brush, offers more controlled application and blending eye shadow. Gently glide the brush on lids little by little, to achieve a natural blending of color. Size: whole length 145 mm; hair length 9.5 mm; hair width 5.5 mm. K272: Eye shadow brush, a flat oval shaped brush for shading or blending of powdery or creamy products. It is ideal for the eye socket and contouring the eye while also blending it all together. Size: whole length 156 mm; hair length 17 mm; hair width 12 mm. K275: Eye shadow brush, an angled brush with smooth, soft fibers, for applying, contouring and blending eye shadow with ease. Pick up some shadow evenly with the tips of hair, apply and blend it along the contour of eye. Size: whole length 155 mm; hair length 8-15 mm; hair width 12 mm. K278: Eye shadow brush, a soft and dense brush with a slightly pointed hair tips, to shade or blend eye shadow. It could also be used for blending eye shadow, to create natural and even color gradation. Size: whole length 155 mm; hair length 17 mm; hair width 13 mm. K285: Eye shadow blending brush, this rounded brush has soft fibers that form a dome shape, enables you to achieve natural blending of colors. Blend eye shadow along the contour of eye with the brush, to create natural and even color gradation. Size: whole length 156 mm; hair length 17 mm; hair width 11 mm. K286: Smudge brush, this brush has short, slightly rounded hair, it can be used to create smoky eye easily. Use the brush with shadow to line and smudge around the lash line or shade lids. Size: whole length 147 mm; hair length 8 mm; hair width 12 mm. K288: Eye shadow brush, a soft and dense brush with a slightly pointed hair tips, to shade or blend eye shadow. It could also be used for blending eye shadow, to create natural and even color gradation. Size: whole length 156 mm; hair length 18 mm; hair width 15 mm. Please allow about 1 mm error due to manual measurement. 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. After burn, if the ash is powder, like we burn grass, then it is natural hair; if the ash is solid, like we burn plastic bag, 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. For our natural hair brushes, although we have tried to deal with it, but they still have a little natural animal hair smell, and it will fade away timely, please consider if you could accept it or not, also you could use a little Comfort to wash it and cover the smell. 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 c