Saffron Threads 2 Grams, Spanish Red Filaments Cat A , Natural Spice For Your Food.( 2 Grams )

Why is this saffron such a good value for the price? Ive been looking for saffron for paella and some brands are so pricey. What is the difference?

Is this sealed for freshness?

Is this product import from Spain?

Am confused. says "super negin", which is best grade designation for iranian/afgan saffron, but also only "grade a" which is not the best grade sp?