I challenge my grandkids to rock these legs loose!!!!. These chairs are not going to get wobbly! The back of the chair and the back legs are one continuous piece. Very heavy wood. I had never heard of rubber wood but now that I have something made with it I will look for it in the future. This set is gorgeous. The only thing that worries me is will glasses leave water stains? I have been very careful but I did order a padded cover for it in case. 

Pros: STURDY BEAUTIFUL
Cons: None