This is a resin Federal Model CP100 siren/public address speaker  for 1/24 and 1/25 scale model emergency vehicles. This is suitable for attachment to any 1960s-1980s fire, police, ambulance, or other emergency vehicle model in a comparable scale. The siren measures approximately .25" in diameter. The kit includes the speaker and a mounting bracket. (The image doesn't really do this set justice. unfortunately, these tiny parts are almost impossible to photograph or scan) It is in new unused condition. It has minor air bubbles and flash and require minimal clean up. It can be painted with enamel, acrylic, or lacquer paints.

This is a scale model solid cast resin part. It is completely inert and nonfunctional.