Image 1 of 1 History Maker Baseball Envelopes $9.00 Separate your player cards into teams, and store them in these sturdy Kraft envelopes. Fifty envelopes per set. Get notified by e-mail when this product becomes available. Quantity: Add To Cart Added! Separate your player cards into teams, and store them in these sturdy Kraft envelopes. Fifty envelopes per set.