Much more practical for a smaller gym, ITBWs are cylinders about 5 times as tall as they are wide. Each one weighs 10kg, and larger masses are obtained by stacking. The barbell bar itself has paddle-shaped ends on which the weights can be stacked. Hard hat advisable.-- MaxwellBuchanan, Feb 18 2019 Congratulations. You've just invented scaffolding poles.-- xenzag, Feb 18 2019 Lifting and balancing. That's artful strength.-- wjt, Feb 19 2019 random, halfbakery