11 43 centimeter version and a 6 u215d inch 16 83 centimeter version fig2 is a perspective view of one embodiment of a swivel 30 swivel 30 can be comprised of mandrel 40 and sleeve 150 sleeve 150 can be rotatably and sealably connected to mandrel 40 accordingly when mandrel 40 is rotated sleeve 150 can remain stationary to an observer insofar as rotation is concerned as will be discussed later inlet 200 of sleeve 150 is and remains fluidly connected to a the central longitudinal passage 90 of mandrel 40 accordingly while mandrel 40 is being rotated and or moved up and down pumpable substances can enter inlet 200 and exit central longitudinal passage 90 at lower end 60 of mandrel 40 fig3 is a sectional view of mandrel 40 which can be incorporated in swivel 30 mandrel 40 can be comprised of upper end 50 and lower end 60 central longitudinal passage 90 can extend from upper end 50 through lower end 60 lower end 60 can include a pin connection 80 or any other conventional connection upper end 50 can include box connection 70 or any other conventional connection mandrel 40 can in effect become a part of drill string 20 sleeve 150 can fit over mandrel 40 and become rotatably and sealably connected to mandrel 40 mandrel 40 can include shoulder 100 to support sleeve 150 mandrel 40 can include one or more radial inlet ports 140 fluidly connecting central longitudinal passage 90 to recessed area 130 recessed area 130 preferably forms a circumferential recess along the perimeter of mandrel 40 and between packing support areas 131 132 in such manner recessed area 130 will remain fluidly connected.