Shaky Mirrors - Pic

[ubtripn]

I installed the mirrors on my truck and they are the single arm type. They have a lot of shake to them when going down the road. I thought the only option of solving the issue was the tri-mounted type but then I saw the one in the picture below while watching a show I love called, "Psych." Does anybody know the name of these type? It appears to have two arms and they don't extend a long distance up or down like the other kinds. (Sorry for the poor quality, I used my camera phone on my tv.)