Magic The Gathering: Kaladesh Gift Box - Rules of Play says:

The Magic: The Gathering Gift Box is specially designed to be the go-to gift for shoppers looking to purchase Magic: The Gathering cards and accessories for their friends and relatives and the box itself is perfect for storing a large collection of cards in a neat and orderly fashion.

Each gift box contains:

• 5 Kaladesh booster packs
• Storage Box with capacity for over 2,000 Magic cards
• 20 Kaladesh basic lands
• 6 illustrated plastic dividers
• Sticker sheet for customizing the dividers
• 1 premium, foil promo card (Chief of the Foundry)