catflap.org Online Dictionary Query

  circular plastic bandage /sˈɜːkjʊlə plˈastɪk bˈandɪdʒ/
  fester/harter/zirkulärer Gipsverband, fester Gips, Gipshülse, Gipstutor
     Synonyms: cylinder cast, leg cylinder
  
   see: bandage with plaster impregnation, plaster bandage, plaster dressing, plaster roller, plaster of Paris cast, plaster of Paris, plaster cast, cast, plaster hip spica, plaster boot, plaster shoe, cast shoe, bivalved cast, hanging cast, He/She has his/her arm in plaster.