The product is a 2025-26 Sp Rookie Authentics Matthew Schaefer trading card, numbered out of 1749. Manufactured by Upper Deck, this card features Schaefer as a member of the New York Islanders in the National Hockey League (NHL). As a part of the base set, this serial-numbered card is a valuable addition for collectors looking to complete their rookie card collection from the 2025-26 season.