The products are realized in glass-reinforced plastic, the top existing quality on the market, constructed in 3 layers of glass-reinforced plastic, 2 layers from 450 grams and one final layer of 300 grams.
The glass-reinforced plastic is advanced to the plastic, if it breaks off, it can be repaired from a carriage maker.
It's a specific product, so will not be necessary modifications for the assembly.