The lock body is made of engineering plastic reinforced nylon PA to ensure durability and strength. It also features toothed stainless steel plates and stainless steel logs, increasing its resistance to the elements. The lock has a temperature range of 20°C to +120°C and can withstand extreme heat and cold, making it suitable for a variety of environments. One of the key features of this lock is its universal design. It can be easily installed on butterfly valves with a maximum handle width of 15mm-45mm. The lock comes in different port sizes, allowing it to accommodate different sizes of butterfly valves. This makes it a versatile solution for valve locking needs.