Product-schema-generator (JSON-LD)

<script type="application/ld+json">
{
  "@context": "https://schema.org",
  "@type": "Product",
  "name": "Ergonomische bureaustoel Pro",
  "description": "Bureaustoel met verstelbare lendesteun, 4D-armleuningen en ademende mesh-rugleuning.",
  "image": "https://www.voorbeeldshop.nl/media/bureaustoel-pro.jpg",
  "sku": "BS-PRO-01",
  "gtin": "8712345678906",
  "brand": {
    "@type": "Brand",
    "name": "Voorbeeldmerk"
  },
  "offers": {
    "@type": "Offer",
    "url": "https://www.voorbeeldshop.nl/bureaustoel-pro",
    "priceCurrency": "EUR",
    "price": "349.00",
    "availability": "https://schema.org/InStock",
    "itemCondition": "https://schema.org/NewCondition",
    "shippingDetails": {
      "@type": "OfferShippingDetails",
      "shippingRate": {
        "@type": "MonetaryAmount",
        "value": "0",
        "currency": "EUR"
      },
      "shippingDestination": {
        "@type": "DefinedRegion",
        "addressCountry": "NL"
      },
      "deliveryTime": {
        "@type": "ShippingDeliveryTime",
        "handlingTime": {
          "@type": "QuantitativeValue",
          "minValue": 0,
          "maxValue": 1,
          "unitCode": "DAY"
        },
        "transitTime": {
          "@type": "QuantitativeValue",
          "minValue": 1,
          "maxValue": 2,
          "unitCode": "DAY"
        }
      }
    },
    "hasMerchantReturnPolicy": {
      "@type": "MerchantReturnPolicy",
      "applicableCountry": "NL",
      "returnPolicyCategory": "https://schema.org/MerchantReturnFiniteReturnWindow",
      "merchantReturnDays": 30,
      "returnMethod": "https://schema.org/ReturnByMail",
      "returnFees": "https://schema.org/FreeReturn"
    }
  }
}
</script>