These are the best cat pole toys on the market by far. The pole and accompanying string is a great length, the feather amazingly real in the air. The option to change out the feather once worn out with a simple dog-tag chain hook is briliant. Great, great product made by Vo-Toys in Harrison, NJ or order here.
Full disclosure: Neither Henri, Simon, or Cosette made me write this post nor did anyone else. I can't for the life of me get a photo of them in mid-air doing their great aerobatic tricks with the feather so here they are opening and playing on their cat tree.