We purchased leather seats from Glasair which added real class to the finish look. Installation to the rear seat was very simple as the work had previously been done when we fabricated the base and back rest. The rear seat is fixed with velcro tape. The base of the front seats sit in the plastic moulds which we previously fitted into place. The back of the front seat is bolded to the frame provided. Most parts for the front seat frame were supplied and we only needed to screw them into place. The challenging part was ensuring the bars were parallell to ensure when the seat slides back evenly with ease.