Problems with exctrudtion

Dear Master of language i do not understand requesting assistance and knowledge on how to extrude circle on my gymnastic bar, i did write you twice so probably forum is not working well as i do not receive answers or maybe you are to ignorant to help any ways i hope to master your language so one fay i can extrude circle and make a design of my gymnastic bar. Biggest respect to you!

Can you please attach here an example of what you’re trying to achieve?

i seen on previous comment thank you