CHARACTERISTICS:Made of polycarbonate. Polyamide threaded end for tube, nozzles, elbows and brushes connection.Length: 200mmExt. Diameter: 40mmInt. Diameter: 36mmWeight: 120gAPPLICATION:Live working up to 36kV a.c. The tube extension is a part of the cleaning set. It is used to clean electrical devices by dry method.