{"product_id":"18-aluminum-arms-parallel-rule","title":"18\" Aluminum Arms Parallel Rule #138","description":"\u003cp\u003eThe 18-inch (45.72cm) Aluminum Arms Parallel Rule feature aluminum arms that join two clear acrylic rulers inscribed with a protractor scale. An essential item in any proper navigation kit, these rules are used to plot direction on a nautical chart from any convenient meridian or compass rose. The two straight-edged rules are connected to maintain the same angle. By walking the rules across the chart and securely holding down the non-moving rule, you can effectively plot a course.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e18-inches (45.72cm) long\u003c\/li\u003e\n\u003cli\u003eProtractor scale\u003c\/li\u003e\n\u003cli\u003eSturdy clear acrylic with aluminum arms\u003c\/li\u003e\n\u003cli\u003eProtective plastic sleeve\u003c\/li\u003e\n\u003cli\u003eLifetime warranty\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Weems \u0026 Plath","offers":[{"title":"Default Title","offer_id":67857279156469,"sku":"WPL0138","price":68.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0829\/2198\/0149\/files\/wpl138.jpg?v=1793150686","url":"https:\/\/paracay.com\/products\/18-aluminum-arms-parallel-rule","provider":"Paradise Cay Publications, Inc.","version":"1.0","type":"link"}