{"product_id":"2026-leaf-baseball-nation-1-1-proof-pack","title":"2026 Leaf Baseball Nation 1\/1 Proof Pack","description":"Introducing the 2026 Leaf Baseball Nation 1\/1 Proof Pack — an ultra-rare collectible for serious card enthusiasts. This exclusive pack contains one-of-a-kind proof cards from Leaf's premium Baseball Nation series, featuring limited-edition designs and premium cardstock. Perfect for collectors seeking authentic, graded-worthy pieces with exceptional scarcity. Each pack is individually numbered and authenticated, making it a standout addition to any baseball card collection. Secure your piece of cardboard history today.","brand":"Cardboard Superstars","offers":[{"title":"Default Title","offer_id":43437279608895,"sku":null,"price":10.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0612\/9506\/7199\/files\/1_02c341c6-badc-4709-b0d4-b31711996a07.jpg?v=1781824582","url":"https:\/\/www.cardboardsuperstars.com\/it\/products\/2026-leaf-baseball-nation-1-1-proof-pack","provider":"Cardboard Superstars","version":"1.0","type":"link"}