TLT eft can be a good choise or simply buy ZB 30 Y t-bond future.
Personally we are at the moment 100% long on ZB futures and buying some march put to cover the downside risk.
Target at least the area 123.
The reason you know, finally worldwide markets are weak enough, below monthly, quaterly and in some cases yearly moving averages.
The bearish rally is arrived, we will have to see in my opinion some market even hit new lows below 2009, for example Greece, some make a double bottom while some like emerging and high growth countries make a double bottom ascending or just a spike V reverse.
I think that the weakest countries will be Greece, Portugal, eastern europe, Japan, high debt countries like Italy, Ireland, etc while the best markets to accumulate India, Cina, Brasile, Mexico, Korea, Hong Kong, Singapore, Taiwan and so on.
Take a look to ETFscreen.com right now to the 1 month worse/best performers and you will see that metals, coal, steel, solar energy, alternative energy and clean etc are falling and the unique etfs doing well are bonds correlated.
This my view for now.