For the regular drummer who is always carrying around his drumsticks and wishes / needs to practice anywhere and regularly without disturbing other people, this is a very nice option! It, somehow, replaces a practice pad, being that the "drumstick" becomes the pad.
This product comes from a very good brand (Tama) but its also very cheap so you should expect it to wear out after some short / medium time (depending of course where you use it)
Beware: It's not supposed to use it on the drum set. Not that you can't, but it does not produce any silencing - the cymbals may sound a little bit different, but thats all!
Only con i find in this product is the lack of a small case where you can store the tips, having in account that they are so easy to be lost