This 2020-21 Upper Deck Series One Hockey Factory Sealed 24 Pack Box features sports a 250-card regular set which includes 198 base cards, 49 Young Guns cards & three checklist cards. Young Guns are the most anticipated rookie cards of the year and scouts are buzzing about the 2020-21 class, labeling several prospects as "elite." A favorite among collectors, the UD Canvas insert returns featuring a collection of the top stars in the game today along with the best of the Young Guns. New Insert. Check out the newest insert, Dazzlers, which is a brightly-colored 50-card collection of full-bodied active stars popped-out (no background) on patterned foilboard. Look for the rare Pink parallel falling. Back by Popular Demand! Collect the entire UD Portraits set featuring superstars and rookies. Look for the return of rare UD Game Jersey memorabilia cards - all featuring game-worn jersey swatches. Keep an eye out for the super rare Ceremonial Puck Drop insert cards. It makes the perfect gift for serious NHL fans and avid collectors.