@Oceans Eleven is right, the one he linked is smaller.  But I guess "overkill" is relative  
 
While the one linked is much smaller in size, it's also 8x more expensive than the ones I use, and only 6 grams lighter.  So if you are looking for tiny, Oceans offers a good choice.  If you are looking dirt cheap, and can spare the 6 grams, you can try 
THESE: