Simple, convenient and efficient, all describe the Xikar 009 Punch Cutter. Twist it to extend the sharp, 9mm cylindrical blade, punch the cap of your cigar, twist to close; and when you do, the plug from the cap is automatically ejected, leaving your punch clean. It's got an integrated key ring, so it will be easy to keep with you at all times. Best of all, it's from Xikar.