Mashable's Shopping team has been covering Amazon Prime Day since 2018, and this year, we've got our work cut out for us. The retail giant just announced that it's extending its flagship members-only sale to four days for 2025.

Amazon Prime Day is a summer sale that was first introduced in 2015. At its start, Prime Day was a single-day event meant to celebrate the company’s 20th anniversary. Over the years, it’s expanded into a 48-hour event, but this year it’s getting another extension: Amazon Prime Day 2025 will be four days long.

Save 20% and get the lowest price we've seen this year on a two-in-one model rocket set from Estes. The Estes Tandem-X Launch set features two rockets, easy-to-assemble parts, a launch pad and parachutes. The Crossfire rocket has a projected maximum altitude of 1150 feet and the Amazon rocket, 600 feet.