The smallest GN H10 mooring shackles start at 0,02 kg up to 0,72 kgs. Medium sizes are larger, starting at 1,2 kgs and going all the way up to 14 kgs. Larger sizes can go from 20 kgs until 62 kgs. Those are at least the standard sizes of the original GN H10 shackles, for larger sizes you can opt for our own mooring shackles, which are new, and produced directly for Castle Hills.