I have these cards in the set.  It is 50 of the 100 cards.  That is what you are buying.  

89B-1 Jordan Lawlar, Arizona Diamondbacks
89B-3 Jose Canseco, Oakland Athletics
89B-5 Jazz Chisholm Jr., Miami Marlins
89B-6 Luis Robert Jr., Chicago White Sox
89B-10 Fernando Tatis Jr., San Diego Padres
89B-11 Marco Luciano, San Francisco Giants
89B-16 Shohei Ohtani, Los Angeles Angels
89B-17 Ronald Acuña Jr., Atlanta Braves
89B-18 Paul Goldschmidt, St. Louis Cardinals
89B-19 Adley Rutschman, Baltimore Orioles
89B-21 Bo Bichette, Toronto Blue Jays
89B-22 Francisco Lindor, New York Mets
89B-23 Bryce Harper, Philadelphia Phillies
89B-24 Luis Matos, San Francisco Giants
89B-26 Justin Verlander, Houston Astros
89B-27 Jose Altuve, Houston Astros
89B-29 Freddie Freeman, Los Angeles Dodgers
89B-30 Willie Mays, San Francisco Giants
89B-31 Aaron Judge, New York Yankees
89B-34 Mookie Betts, Los Angeles Dodgers
89B-39 Mike Schmidt, Philadelphia Phillies
89B-41 Carlos Correa, Minnesota Twins
89B-47 George Brett, Kansas City Royals
89B-50 Junior Caminero, Tampa Bay Rays

89B-51 Barry Larkin, Cincinnati Reds
89B-53 Mark McGwire, Oakland Athletics
89B-54 Jackie Robinson, Brooklyn Dodgers
89B-57 Clayton Kershaw, Los Angeles Dodgers
89B-60 Oneil Cruz, Pittsburgh Pirates
89B-61 Rafael Devers, Boston Red Sox
89B-63 Byron Buxton, Minnesota Twins
89B-64 Anthony Rizzo, New York Yankees
89B-66 Julio Rodríguez, Seattle Mariners
89B-68 Vladimir Guerrero, Montréal Expos
89B-71 Nolan Schanuel, Los Angeles Angels
89B-75 Sonny Gray, Minnesota Twins
89B-79 Endy Rodríguez, Pittsburgh Pirates
89B-81 Ozzie Smith, St. Louis Cardinals
89B-82 Riley Greene, Detroit Tigers
89B-85 Curtis Mead, Tampa Bay Rays
89B-86 Greg Maddux, Atlanta Braves
89B-88 Cal Ripken Jr., Baltimore Orioles

89B-89 Frank Thomas, Chicago White Sox

89B-90 Zack Gelof, Oakland Athletics

89B-94 Adolis García, Texas Rangers
89B-95 Kyle Harrison, San Francisco Giants
89B-96 Andrew Abbott, Cincinnati Reds
89B-97 Miguel Cabrera, Detroit Tigers
89B-99 Corbin Carroll, Arizona Diamondbacks
89B-100 Tyler Soderstrom, Oakland Athletics