Features FOR SWITCH BUTTON --- The protective cover is mainly used to install on the emergency stop switch control button to prevent accidental touch. REASONABLE STRUCTURE --- With reasonable structure to facilitate locking, and can effectively lock the emergency stop button switch. PC MATERIAL --- Made of excellent PC material, with excellent workmanship, bending and corrosion resistance and not easy to age. EASY INSTALLATION --- The inner diameter of the installation hole is 22mm, with standard size, which is convenient for installation. APPLICABLE SCENARIOS --- Suitable for industrial, chemical, electric power, petroleum, coal, flammable and explosive places. Specification: Item Type: Button Switch Protector Model: BS-01 Material: PC Purpose: Install on the control button to prevent accidental touch Mounting Hole Inner Diameter: Approx. 22mm / 0.9in Package List:1 x Button Switch Protector Package List 1 x Button Switch Protector