this be a good addition for the SelectTech dumbbell and bench . the quality be good but some of the bolt in the seat be at a difficult angle to install . the fit and finish be good but there be a small sharp bump at one of the soldered joint ; that be easily fix with the blunt tip of a pair of pliers . the instruction be easy to follow and the stand feel solid . the castor wheel do not have to be use but be a nice option to have . I would recommend it .