I bought a cheap shooting stick at Wal-Mart which doubles as a trekking pole for me. I've got some balance issues due to a heart condition, and it makes a huge difference. For me. I plan on buying some actual trekking poles for now fall.
Look over at Amazon
My wife and I field tested some poles marketed by Alpine Summit
With cork grips and strong flick locks we couldn't find a thing wrong with them as a matter of fact they seemed to be of a very high quality vs their low price point.
We had the option to keep them or return them........we kept both sets!!