Master Model 1/48 TS-11 Iskra Pitot Tubes and 23mm gun barrel - AM48117 The set include turned brass Pitot Tubes, U/C indicators and 23mm gun barrel. It is very simple to use in Your model and makes it extremely realistic. Simply cut off the original plastic elements and drill a holes in the remaining plastic parts and insert the metal elements using Cyanoacrylate adhesives.