Packed in Wooden Case for Samples. For full container shipping, can be wooden case or heavy duty corrugated carton. Loading Qty of 1x20 feet container: 12 sets with wooden cases. (Can load 14 sets with heavy duty corrugated carton) Loading Qty of 1x40 feet container: 24 sets with wooden cases. (Can load 26 sets with heavy duty corrugated carton)