There was one container made of wood that was thirty feet long, five feet wide and ten feet high. At the front were two large doors that met at the center with a lock at the center which the store owner opened. Inside there were thousands of swords, kunai and Baku tags on display and piled neatly into the wooden container.
The shop owner was someone that konoha had dealings with before on many occasions. He activates his byakugan due to the numerous amount of weapons there. He saw a box of kunai where he detected that there was a few plastic kunai and even others without different parts and these he reported to the shop owner.