There is no particular problem regarding quality. Since it will be quite expensive if you order at an auto parts store, these products are appreciated. Monotaro's items sometimes have "something to worry about", so feel it is necessary to see the quality.
In the plastic bag at the time of product packaging, we have purchased two 'bubbles' (bubbles) that were mixed at the time of manufacturing, but they were all in the same place (bubbles) but one Not about 10, about 0.1 to 0.5 mm · · · · · · · · · · · · Concentrated in one place Is strength and durability problematic? What will happen with the effects of snow melting agents?