What would happen if the interior of a tube was lined with these, could they move an object cylinder through the tube? What if you have the exterior covered in

What would happen if the interior of a tube was lined with these, could they move an object cylinder through the tube? What if you have the exterior covered in these, could they move (easily) a donut surrounding it? What happens if you have these face each other? can these be use for super slippery loading sled-tracks in ships, planes, trains? Whats the weight limits? Can they be scaled down really small and basically put around a cable-line to slide things along like a zipline?