Features - Color: Pink. - Derma roller handpiece: 15 cm (length). - Derma roller Material: plastic. - Derma roller head: 0.25 mm 240 needles, 0.25 mm 600 needles, 0.25 mm 1200 needles. - Crystal roller Material: natural crystal, alloy. - Crystal roller head diameter: 45 mm, 25 mm. - Crystal roller length: 15 cm. - This roller kit is a scientific and comprehensive device handpiece with 3 microneedling roller heads and a double-ended crystal roller. - Derma roller can promote the transdermal application of creams, gels and oils, and help them be absorbed far more effectively and massively. - Smooth crystal roller can relieve redness, shrink pores, reduce fine lines, edema, improve vessels circulation and firm skin. - 0.25 mm 240 needles for skin around eyes, 0.25 mm 600 needles for face skin, 0.25 mm 1200 needles for body skin, large crystal roller head for face skin, small crystal roller for skin around eyes and nose.