The Comfort Zone Facial Roller is a non-aggressive mechanical tool that is used directly on the skin with repetitive movements to stimulate local microcirculation and subsequent better absorption of product. The massage has a specific effect on the nerve connection because the tool has equal tips all around (but no needles), which gives an evenly distributed pressure. You get effective, constant progressive pressure. Material: zinc alloy. Size: 13x3. 5 cm. Weight: 124 grams. Comes in a cotton bag to store your Facial Roller in.