Pokémon GO’s Black Friday sale is live on the Web Store, offering double bonus PokéCoins on bundles priced over $19.99, with up to 2,000 bonus PokéCoins on select purchases. The offer runs from Nov. 8 at 5 p.m. PST through Nov. 29 at 8 p.m. PST, with a limit of one purchase per discounted bundle per customer. The Seasonal Delights Box is available exclusively on the store through Nov. 27 at 8 p.m. PST for 6,095 PokéCoins and includes 40 Incubators, 40 Super Incubators, three Remote Raid Passes, five Premium Battle Passes and one Max Particle Pack; purchases are limited to three per customer.
Source: Official Pokémon GO blog