Mine are cheap Cabelas aluminum, something like $35/pair. They work but they have problems. If you hit a rock, they ring like a chime. Then if they're wet, the locks will freeze and you can't adjust them until they thaw out. The fun part, though, is they have compasses in the grips. I bought 2 pair. I can line them up and all 4 compasses will point in different directions. Highly reliable, no?
