Love em! I have been using the soft paws/soft claws for three years. For my less active cat, Emma Lee, they last about 2-3 months. For the wild child, Cooper, a month. Basically, they fall off when the nail sheds. I trim the nail first, they seem to last longer that way. They are easy to put on, just as previously described and really work. They come without the guilt of declawing which I did to one cat and will NEVER do again. Good luck. BTW I usually buy em at petco or amazon. At amazon, you buy 2 sets and shipping is free (anything over $25). This ebayer has 3 sets for $15 each size medium. http://cgi.ebay.com/soft-claws-nail-...QQcmdZViewItem Both brands are the same quality. Wishing the kitty the best!