Lot Pokémon offers 640 + Trading Cards

Product Name: Lot Pokémon offers 640 + Trading Cards
First let me say I know nothing about Pokémon cards. I can tell you there is many that shine. My son called foil I think. My son is grown now and took care of them. I did notice two that seem to be not as good as others but included them. I could have missed others. I counted out bundles of 50 and tried to add some of the shiney ones with some trainer and some energy. I just noticed them different. I didn't notice duplicates but could be. Total offers if I counted right but at least it's close 641 cards. Non smoking pet free home. The box not included.