The 2021 Topps Chrome Sapphire Edition Hobby Box for Major League Soccer (MLS) is a sealed box containing 32 standard-sized sports trading cards. This limited edition box features cards from the 2021 Topps Chrome MLS Sapphire set, showcasing players like Brenner, Ricardo Pepi, and Caden Clark. Each box is manufactured by Topps in the United States and includes serial numbered rookie cards, parallels, and inserts, making it a highly sought-after collectible for soccer fans and trading card enthusiasts. The box represents the excitement of the MLS Cup and includes cards from various teams such as Inter Miami CF, Nashville SC, and New York Red Bulls.