This Costco-exclusive package includes four tickets to a Seattle Mariners regular season home game at T-Mobile Park in Seattle, Washington, with seating in the 300 Level (View Level). The 300 Level is T-Mobile Park's upper deck, featuring sections 306 through 347 that wrap around the entire stadium. Infield sections such as 320–340 provide excellent sightlines toward home plate and the center field scoreboard, while first-base-side sections offer views of the Seattle skyline. Portions of the upper deck are protected under the stadium's retractable roof.

Tickets are redeemed online through FEVO (gofevo.com) and are delivered digitally via the MLB Ballpark app. Seating is best-available at the time of redemption for eligible regular season home games. This package is non-refundable and subject to Costco purchase limits of one transaction per visit, with a maximum of five units per membership every 14 days.