?Package content: 6 pcs empty twist pen; Each tube's capacity: 3 ml, good for professional and home use ?Material: aluminum? and PP material ?Easy to carry and store: overall length is about 5 inch, portable brush pen applicator, easy to take it on the go, in your purse or bag ?No waste and sanitary: by twisting the pen, filled the brush head with cosmetic liquid and then precisely paint in where you need i ?Uses for filling lip gloss, nail nutrition oil, essential oils, nail polish, eyelash growth, perfume ETC.