The 2026 Topps Series 1 Celebration Mascots Complete Set features 30 standard-sized trading cards depicting MLB mascots. Manufactured by Topps, these original English-language cards are made of card stock and are part of the 2026 Series 1 set. With no autographs and no vintage feel, these base set and insert cards are a must-have for baseball fans looking to complete their collection of MLB mascots.