Discount Learning Supplies 100-Piece 16 mm Assorted Colored Dice with Storage Bag

I have been looking for dice to play tenzi. Would these be good to play the game with?

Where are these made?

Do these dices have a glossy surface like it was coated with a shine to them? I had cheap dices that are rough and want to avoid those type of dices.

Does this 100 piece set have instructions on how to play variations of the game