These brooches are hand sewn with embroidery cotton onto recycled wool jumpers that have shrunk in the wash. They look great on a jacket, coat or jumper. Each bird has its own personality and I never make the same one twice! They have a safety pin fastening, they will be fine if they accidentally go through the washing machine, just iron with a cloth on top. They measure approximately 5cm X 4cm. I always post via Royal Mail first class.