I was initially afraid that the incredibly soft downy feathers might not provide enough tactile stimulus to provoke a reaction, but my wife said it made her skin tingle and gave her goosebumps. This tickler works especially well with a blindfold so that your partner's senses will be heightened and they'll never know where you'll touch them next.
This tickler cannot, however, be used as a crop as advertised in the description, and there is no firm portion to the feather; it is soft and pliant from beginning to end. If you're looking to mix a playful sting in with the tickling, this isn't the toy to use.