Metal and X ray detectors can detect the reusable blue ties. These ties are mainly used in industries that are contamination-aware, such as chemicals or food industries. It is possible for them to be part of the HACCP UE directive. These reusable blue ties are 4.8 mm x 250 mm in terms of dimensions and comply with UL94V2 fire norms. They work in the temperature range of -40° to 85°C.