1、STRONG MATERIAL: Valve lock lock body with erosion resistant, good insulation, can withstand high and low temperature difference(-50℃~+177℃) reinforced imported alloy engineering plastic PA and ABS, strong and not easy to deformation, suitable for a variety of working environments 2、ACCURATE LOCKING: The lock lock with key cylinder is designed for the gate valve handwheel, which can be tightly fitted to provide a more accurate locking effect 3、HIGH EFFICIENCY: The valve lock with its own key cylinder simplifies the operating process, replaces the traditional locking and listing method, saves costs and improves work efficiency 4、SAFE CLOSURE: Self locking adjustable gate valve locking design to ensure that the gate valve is completely closed, improve the safety of workers and prevent accidental start, in order to achieve energy isolation, equipment locking, to prevent misoperation purposes 5、EFFECTIVE MANAGEMENT: Three traditional gate lock devices can be replaced by adjusting to accommodate a wide range of valve sizes. At the same time, the equipment is locked and listed to effectively manage and prevent the valve from accidentally starting Item Type: Self locking Handle Valve Lock​ Material: PA and ABS Suitable Hand Wheel Diameter: Less than Approx. 165mm / 6.5in 1 x Self Locking Handle Valve Lock 3 x Hangtag 3 x Zip Tie 1 x Key 1 x User manual