Ruck Zuck, fast delivery. Rollers in good quality. Price-performance super compared to hardware store or other suppliers in the category "expensive product accessories". These rollers moving the XXL beach chair is also not a problem. Additional screws 4x35mm (INOX) concerned. Now the beach chair can be turned quickly into position for the spring sun on the terrace, if indeed now, in mid-March 2013 times last spring is :-)