roller kit is a scientific and comprehensive device with 3 roller heads of different needle count. And our rollers are made of high grade micro needles which can roll over and penetrate the skin upper surface painlessly, help accelerate application of creams, gels and oils, which can be absorbed far more effectively and massively. Features - Brand: . - - handpiece: 15 cm (length). - material: plastic. - head: 0.5 mm 240 needles, 1.0 mm 600 needles, 1.5 mm 1200 needles. - Jade roller material: jade, alloy. - Jade roller head diameter: 45 mm, 25 mm. - Jade roller length: 15 cm. - This roller kit is a scientific and comprehensive device handpiece with 3 roller heads and a double-ended jade roller. - rollers are made of high grade micro needles, roll them over facial or body, the needles will penetrate the skin upper surface painlessly. - can promote the application of creams, gels and oils, and help them be absorbed far more effectively and massively. - Smooth jade roller can relieve redness, shrink pores, reduce fine lines, edema, improve vessels circulation and firm skin. - 0.5 mm 240 needles for skin around eyes, 1 mm 600 needles for face skin, 1.5 mm 1200 needles for body skin, large crystal roller head for face skin, small crystal roller for skin around eyes and nose. - Light weight, compact size and detachable design make our roller kit accessible to users anytime and anywhere, including both home and travel. Package list: 1 x Handpiece 3 x Heads 1 x Double-ended Jade Roller 1 x Storage Case 1 x User Manual