{"product_id":"pro-penn-marathon-extra-duty-4-pack-tennis-balls","title":"Pro Penn Marathon Extra Duty 4 Pack Tennis Balls","description":"\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eThe Pro Penn Marathon is Penn’s longest-lasting tennis ball.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFeaturing exclusive Encore™ Technology for a 22% longer-lasting core and high tenacity LongPlay\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cp\u003e\u003cspan\u003ePro Penn Marathon is the official ball of PTR because of its \u003c\/span\u003edurability\u003cspan\u003e and visibility \u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003ePenn’s Professional tennis balls are the most technologically advanced tennis balls, providing the player with top-of-the-line core and felt technologies that allow the ball to play at its best for longer periods of time.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e4-tube pack\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e3 balls per can\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Head","offers":[{"title":"Default Title","offer_id":5622134439965,"sku":"BLPP4PK","price":26.99,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2699\/5810\/files\/Screenshot_2025-11-06_141345.png?v=1762467292","url":"https:\/\/www.topspintennis.ca\/products\/pro-penn-marathon-extra-duty-4-pack-tennis-balls","provider":"TopSpin Tennis Shop","version":"1.0","type":"link"}