[rottcrazed]

I have used everything I think. I have even had open dumbbells made for my male (his muzzle is very wide and needs a certain size). I prefer the plastic to the wood, although the plastic has a tendency to bounce more on landing and tends to go off in different direction more than a wood dumbbell.

I have small hands and prefer the plastic for that reason as well however, whatever you choose, practice throwing A LOT without your dog so you can get it right!

Kristi