Seem very rugged and well made. Great quality, easy to assemble. Bought the 2 arms with bar in between. The size is 10-11 mens (which is 12-13 womens)! Alles in Allen ist dies Meckern auf hohem Niveau und ich bin vollsten zufrieden mit den GSP 300. The second largest Improvement in my opinion is less glare or otherwise known as God rays. Worked well for my brother I feel like I could walk all day in them. Feel so comfortable and feels like slippers. ????!