This strapping tensioner is a multipurpose tool that is suitable to be used with poly , polyester , woven and composite strapping. These tools are used to increase the tension of the strap around the load to create a tight and secure load. This is important to ensure the safety and security of your goods during the entire transportation process. To operate this tool, the strap is inserted and the lever is pulled back and forth to tighten it. This tensioner can be used for strapping widths from 12 to 19mm. Features and Benefits Suitable for poly , polyester , woven and composite s trapping Provides very high-tension strap to secure the load. Can be used for 12 to 19mm wide strap. Easy to operate.