{"product_id":"phelps-plastic-amp-vertex-series-3-pack-elk-calls","title":"Phelps - Vertex Series 3 Pack Elk Calls","description":"\u003cp\u003e\u003cspan\u003eThe Vertex Series diaphragms use a “Flat Dome” for people who don't desire a dome style call, but enjoy the consistency and forgiveness a dome provides. The Vertex excels at cow vocalizations and can make bull sounds as well. 3 calls equipped with 3 different latex thicknesses and stretch options to match your calling preferences. \u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eVertex 1: Light Build = Light Air Pressure \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eVertex 2: Medium Build = Medium Air Pressure \u003c\/span\u003e\u003cbr\u003e\u003cspan\u003eVertex 3: Heavy Build = Heavy Air Pressure\u003c\/span\u003e\u003c\/p\u003e","brand":"Mountain Archery","offers":[{"title":"Default Title","offer_id":51574313845056,"sku":"843380181262","price":34.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0778\/9864\/5824\/files\/Screenshot2026-07-01152104.png?v=1782940882","url":"https:\/\/mountain-archery.com\/products\/phelps-plastic-amp-vertex-series-3-pack-elk-calls","provider":"Mountain Archery","version":"1.0","type":"link"}