Very simple and robust design that should be able to withstand the abuses of the trails. Bought this as a replacement for my $120 wiper/motor kit. The lower arm came apart which is the reason why I bought this wiper. After careful inspection, this arm seems stronger and you can’t beat the price. The only “con” is the actual wiper is shorter by an inch and a half and not the automotive type. The photos show the automotive style wiper on my Cat.