too hard
"Despite my 120 kg, the extra firmness is too hard, there's too little cushioning. What's more, as the elastomer is too firm, it's very, very difficult to install".

Overall rating: 1.0 / 5 from 1 reviews.
Review topics: [].
"Despite my 120 kg, the extra firmness is too hard, there's too little cushioning. What's more, as the elastomer is too firm, it's very, very difficult to install".