Compared with other types, this type is with a 90mm diameter of hard chrome plated insert.
It is highly durable and has no smell. The truth is that we do not always change our formulas on our hands, and once they performed better than before, we can finally put them into production. We never skim on the quality of materials.
When it comes to the color rubber bumper plates at our factory, we always clean the molds after one piece of bumper plate is vulcanized well.