The Wall Switch Lockouts feature a tamper-proof design that protects against vandalism and accidental breakage. Hinges for both Universal and Standard design open for unobstructed normal switch operation. Universal design locks out both toggle and Decora® wall switches, and features durable solid steel U-bolt hasp with malleable steel lock plate that provides maximum security and are suitable for most toggle/single/three-way electrical switches. The Standard design fits most wall-mounted single or three-way electrical switches. All Wall Switch Lockouts are RoHS compliant.Decora® is a registered trademark of Leviton Manufacturing Co., Inc.