The Environ Gold Roll-CIT®: is a handheld 14 ct gold plated roller that has 260 ultra-fine needles of the highest grade surgical 316 stainless steel. The needles are 0.2 mm in length. Designed to help enhance the overall look and feel of your skin, this Environ needling instrument is specially crafted for use on areas of your face that demand extra special care such as the delicate skin around your eyes, nose and mouth. The gold plated roller gold naturally suppresses bacterial growth.