Red universal mini circuit breaker for single to triple switches. Simple and quick installation with no tools. Place over the switch, tighten with finger and thumb, rotate screw toggle and lockout with padlock as normal. Strong nylon material, long lasting, robust and non-conductive. Holds one padlock. Once locked with padlock and in position the product becomes tamper-proof. Nylon Body Tamper-Resistant Max. Shackle Diameter: 7mm Robust & Non-Conductive Suitable for Both Domestic & Trade Use Max Open Dia: 9mm Nylon Body Tamper-Resistant Max. Shackle Diameter: 7mm Robust & Non-Conductive Suitable for Both Domestic & Trade Use Max Open Dia: 9mm