Fabricated from lightweight but high-strength aluminum. The royal-blue anodized grip body and the high-strength cap feature checkering that provides additional grip without placing an undue burden on the pocket hem. The Boker Plus TP also has a hard, rounded stainless steel insert on the shaft end that facilitates use as a Kubotan. The cap has a precision thread and is additionally secured with an O-ring on the inside. For writing purposes, the cap can be optionally pushed onto the back of the pen. Overall length 15 cm. Diameter: 13 mm. Weight 50 g. Fabricated from lightweight but high-strength aluminum. High-strength cap feature checkering that provides addition grip without place an undue burden on the pocket hem. Hard, rounded stainless steel insert on the shaft end facilitates as a Kubotan Cap has a preccision thread and is additionally secured with an O-ring The cap can be optionally pushed onto the back of the pen