The shorter version of the popular K.I.D. cal .45 is significantly shorter, a littler thicker in circumference and with a traditional clip, the K.I.D. cal .50 is very comfortable to grip and lies very in the hand while writing. The special format (one would speak of "robustness" with a cigar) makes this machined aluminum writing tool a real eye catcher. Here, the ingenious mechanism is a pure appeal to the male urge to play. Many a tough contract negotiation has been given a decisive turn by a cleverly inserted "click" at the right moment. The special finish has a matte sheen and is very comfortable to hold.