{"product_id":"key-chain-funny-math-joke-pattern-of-delta-s-entropy-is-not-what-it-used-to-be-creative-studios-math-nerd-jokes","title":"Key Chain - Funny math joke pattern of Delta S Entropy is not what it used to be. Creative Studios – Math Nerd Jokes","description":"Funny math joke pattern of Delta S Entropy is not what it used to be. Key Chain is available in sets of 2, 4 and 6; making them perfect for sharing.  Image is printed on both sides and has a high gloss finish.  Measures 2 3\/8\" x 2 3\/8\" x 3\/8\" and are made of heavy duty durable plastic.  Rings and plastic clips included.","brand":"3dRose","offers":[{"title":"set of 2 Key Chains","offer_id":46320050503763,"sku":"kc_353481_1","price":12.99,"currency_code":"USD","in_stock":false},{"title":"set of 4 Key Chains","offer_id":46320050536531,"sku":"kc_353481_2","price":19.99,"currency_code":"USD","in_stock":false},{"title":"set of 6 Key Chains","offer_id":46320050569299,"sku":"kc_353481_3","price":24.99,"currency_code":"USD","in_stock":false},{"title":"DMA Key Chain","offer_id":46320050602067,"sku":"kc_353481_4","price":8.99,"currency_code":"USD","in_stock":true}],"url":"https:\/\/shop.prepare-ready.com\/products\/key-chain-funny-math-joke-pattern-of-delta-s-entropy-is-not-what-it-used-to-be-creative-studios-math-nerd-jokes","provider":"shop.prepare-ready.com","version":"1.0","type":"link"}