2025-26 Upper Deck Extended Series Hockey Hobby Box

With the new addition of Rookie Debut jersey swatches, Upper Deck Extended Series now grants the opportunity for jersey cards from Matthew Schaefer, Beckett Sennecke, and other rookies with game-worn paraphernalia from their FIRST EVER NHL games. 2025-26 Upper Deck Extended Series Hockey cards at a glance: Cards per pack: Hobby – 12, Blaster – 12 Packs per box: Hobby – 12, Blaster – 4 Boxes per case: Hobby – 12, Blaster – 20 Set size: 250 cards Release date: June 3, 2026 What to expect in a hobby box: Pros And Prospects, UD3, or Rookie Reflections Inserts – 10 Total Power Play, All-World Team, Sizzle Reel, or Understood The Assignment Inserts – 9 Total Blue Dazzlers Inserts – 1 Young Guns or 1st Round Rookies – 6 Total UD Canvas Inserts – 4 Serial-Numbered or Rare Inserts – 3 Outburst Silver Parallel – 1 Power Play, All-World Team, Sizzle Reel, or Understood The Assignment Speckle Parallels – 1 Total Clear Cut Parallel, UD Canvas Black and White Parallel, or HoloGrFX insert – 1 Total