Posted by rfvv on Wednesday, June 6, 2012 at 12:57am.
1. They could be called weights or bar bells.
http://www.google.com/search?q=weights&hl=en&prmd=imvns&source=lnms&tbm=isch&ei=UIDPT5fwFqOq2gW17fnYDA&sa=X&oi=mode_link&ct=mode&cd=2&ved=0CIUBEPwFKAE&biw=711&bih=453
http://www.google.com/search?q=weights&hl=en&prmd=imvns&source=lnms&tbm=isch&ei=UIDPT5fwFqOq2gW17fnYDA&sa=X&oi=mode_link&ct=mode&cd=2&ved=0CIUBEPwFKAE&biw=711&bih=453#hl=en&tbm=isch&sa=1&q=barbells&oq=barbells&aq=f&aqi=g10&aql=&gs_l=img.3..0l10.29179.31385.0.31665.8.8.0.0.0.0.188.1166.0j8.8.0...0.0.wsmk30ChYfQ&pbx=1&bav=on.2,or.r_gc.r_pw.r_qf.,cf.osb&fp=b6d007ac402082c9&biw=711&bih=453
2. "On" is better. You can also use "from."
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