The Accu-Shot® Precision Rail Monopod (BT12-QK) is constructed from T6061 aluminum with a hard anodize finish and the internal components are made from alloy steels, heat treated to Rockwell 52 for long lasting strength and durability. This model is equipped with the new Quick Knob (QK01) which allows quick gross adjustments into the target with a push of a button! The QK01 has a spring loaded button that when depressed allows the operator to slide the knob up or down on the Actuator Rod quickly into the desired sight picture. The approximate length of the monopod when fully extended is 3.5″-4.75″ and can be purchased for only $94.95 by clicking here.