The B-Safe Ball Valve Lockout is made of strong "Polypropylene" plastic. It is fully dielectric. It is also highly resistant to solvents and other chemical products, cracking and abrasion, and extreme temperature changes, -50°F (-46°C) to 360° F (183°C). For valves from 1-1/2" to 2-1/2".

Features:

• An easy way to prevent accidental energization of quarter-turn ball valves
• Safe, efficient and inexpensive protection-installs in seconds
• Fully dielectric (nonconducting) polypropylene plastic
• Highly resistant to solvents and other chemical products
• Highly resistant to cracking and abrasion
• Open ended to accommodate any handle length and can only be locked in the closed position
• Resistant to extreme temperature changes