The HSS-M120-TPE RAL9005 with Grommet; Ømount.hole: 120mm; TPE (thermoplastic elastomer), manufactured by HT HI TECH POLYMERS OY is an electronic part that is designed to protect electrical or electronic equipment from moisture, dust, and vibration. It has an IP67 rating, meaning that it can remain totally protected against dust, and has a high degree of protection against the ingress of liquids. It is made from a TPE (thermoplastic elastomer) material which is durable, robust, and resistant to temperature change, UV exposure, and most chemicals. The Ømount.hole diameter of 120mm allows for an easy and secure installation, making it the perfect choice for a wide variety of electrical applications.