3B Scientific GmbH Metal Pole For pelvic mounted skeletons. Use with models A10, A11, A12, A13, A15
Part number 1020636
Replaces old part number 4000040
The tube is open inside. It has a wing nut about 1-1/2" from the end and a screw about 3-3/8" down from the same end of the tube. Tube is about 5/8" diameter and 25-1/4" long.