Color:Send By Random Needle Length: 0.5mm, 1.0mm(choose the one you need) Handle Length: App 9.5cm Roller Size: App 1.8cm(L); 2cm(Diameter) Material:Medical Stainless Steel Needle Package Size: App16.5cm*5cm*4.2cm Weight: About 84g Apply For: Acne,Wrinkle, Whitening Skin Package Included: 1 X Skin Needle Roller (Multicolors,Send By Random) Caution: 1. The instrument can not be overused as the needles will remain sharp for a prolonged time. 2. Not suitable for use on the following skin condition: active acne, eczema, rosacea, psoriasis, severe solar keratosis and raised moles or warts. 3. Keep out of reach of children. How to use: 1. Before use, clean your skin, rinse thoroughly and towel dry. 2. Simply use mild pressure gently without forcing the roller into the skin. 3. Roll 5-6 times per area vertically,horizontally and diagonally. 4. Clean under running warm water after use. 5. Air-dry.