The metal clips are used to seal Polypropylene strapping to packages or pallets. The clips have a roughened surface on the inside, this ensures a secure fit of the closed clip. These can be delivered immediately in the sizes 13 mm and 16 mm. A strapping tool is required to tension the strapping and attach the clip. In order to additionally secure the package or the pallet with a security seal, the sleeve must be punched with the Bednorz slot pliers.