Product Name: 540 Derma Roller Micro Needle for Face Using Model NO.: DN-2 Shelf Life: 1 Years Age Group: All Ages Gender: Unisex Body Part: Face Skin Type: Combination Function: Anti-Aging, Acne/Blemish Control, Wrinkle Remover Product Name: Derma Roller System Micro Needles for Face Using Head Quantity: 1 Handle Quantity: 1 Hand Color: Black/White Feature: Improve Body Needle: Stainless Steel material: High Grade Micro Needles Times of Use: 4-5 Sample: Yes Port: Shanghai Trademark: Shinylink Transport Package: Colored Box Specification: Stainless steel Origin: China HS Code: 3926909090 Product Description 540 needles micro dermal roller for beautyHow to clean the Derma Roller-Soak about 5~8 minutes with 75% alcohol, or use ultraviolet to disinfect for 45mins-Please store it carefully,it should be placed out of reach of children!-All dermaroller are disposable and personal use,do not share with other people.Used Method1. Clean your face in common way. Clean the dermaroller.2. After about 15minutes, put micro-needles end on your face and make it roll on your face.3. Do not use it in heavy press into your skin,in mild pressure!4. Clean the derma roller after use. store it in dry & clean place.