A lockable, telescoping tube comprising: an outer tube comprising an outer tube first end and an outer tube second end opposite the outer tube first end; an inner tube comprising an inner tube first end and an inner tube second end opposite the inner tube first end, wherein the inner tube first end is slidably-inserted into the outer tube first end; a friction block and a pivot axis; the friction block protruding from the upper coupler and/or the lower coupler, wherein the friction block is releasably-pressable against the inner tube; and a pressure latch at least partially enclosing the pivot axis, wherein when the pressure latch is closed the pressure latch physically presses the friction block against the inner tube so as to restrict movement of the inner tube, and wherein when the pressure latch is open the friction block releases pressure from the inner tube thereby allowing the inner tube to slidably-move; characterized in that the lockable telescopic tube further comprises: a lower coupler external to the outer tube first end; a shaft shield affixed to the inner tube first end via a snap-fit closure (34.2), wherein the shaft shield is slidably-inserted into both the outer tube first end and the lower coupler; an upper coupler external to the inner tube, wherein the shaft shield is physically blocked from passing into the upper coupler, wherein the upper coupler is affixed to the lower coupler via a snap-fit closure, and wherein the upper coupler is affixed to the outer tube first end via a snap-fit closure (34.1); the pivot axis connecting the upper coupler and the lower coupler. an outer tube comprising an outer tube first end and an outer tube second end opposite the outer tube first end; an inner tube comprising an inner tube first end and an inner tube second end opposite the inner tube first end, wherein the inner tube first end is slidably-inserted into the outer tube first end; a friction block and a pivot axis; the friction block protruding from the upper coupler and/or the lower coupler, wherein the friction block is releasably-pressable against the inner tube; and a pressure latch at least partially enclosing the pivot axis, wherein when the pressure latch is closed the pressure latch physically presses the friction block against the inner tube so as to restrict movement of the inner tube, and wherein when the pressure latch is open the friction block releases pressure from the inner tube thereby allowing the inner tube to slidably-move; characterized in that the lockable telescopic tube further comprises: a lower coupler external to the outer tube first end; a shaft shield affixed to the inner tube first end via a snap-fit closure (34.2), wherein the shaft shield is slidably-inserted into both the outer tube first end and the lower coupler; an upper coupler external to the inner tube, wherein the shaft shield is physically blocked from passing into the upper coupler, wherein the upper coupler is affixed to the lower coupler via a snap-fit closure, and wherein the upper coupler is affixed to the outer tube first end via a snap-fit closure (34.1); the pivot axis connecting the upper coupler and the lower coupler. a lower coupler external to the outer tube first end; a shaft shield affixed to the inner tube first end via a snap-fit closure (34.2), wherein the shaft shield is slidably-inserted into both the outer tube first end and the lower coupler; an upper coupler external to the inner tube, wherein the shaft shield is physically blocked from passing into the upper coupler, wherein the upper coupler is affixed to the lower coupler via a snap-fit closure, and wherein the upper coupler is affixed to the outer tube first end via a snap-fit closure (34.1); the pivot axis connecting the upper coupler and the lower coupler.