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 1[FOR SWITCH BUTTON] The protective cover is mainly used to install on the emergency stop switch control button to prevent accidental touch. 2[REASONABLE STRUCTURE] With reasonable structure to facilitate locking, and can effectively lock the emergency stop button switch. 3[PC MATERIAL] Made of excellent PC material, with excellent workmanship, bending and corrosion resistance and not easy to age. 4[EASY INSTALLATION] The inner diameter of the installation hole is 22mm, with standard size, which is convenient for installation. 5[APPLICABLE SCENARIOS] Suitable for industrial, chemical, electric power, petroleum, coal, flammable and explosive places.