{"product_id":"mass-dynamic-a4-c4-large-letter-postal-boxes-330x230x22mm-cardboard-shipping-boxes-mailing-boxes-for-royal-mail-pack-of-10","title":"Mass Dynamic A4 C4 Large Letter Postal Boxes, 330x230x22mm Cardboard Shipping Boxes, Mailing Boxes for Royal Mail (Pack of 10)","description":"\u003cp\u003e\u003cstrong\u003eMass Dynamic A4 C4 Large Letter Postal Boxes (Pack of 10) – 330×230×22mm Strong Corrugated Cardboard Shipping Boxes for Royal Mail Mailing\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDescription:\u003c\/strong\u003e\u003cbr\u003eUpgrade your packaging with these premium Mass Dynamic A4 C4 Large Letter Postal Boxes, specially designed for safe, secure, and cost-effective shipping. These strong and reliable cardboard mailer boxes are ideal for both personal and business use, ensuring your items reach customers in perfect condition.Manufactured from high-quality 1mm thick corrugated kraft cardboard, these boxes offer excellent durability while remaining lightweight to help keep postage costs low. The sturdy construction resists bending, crushing, and pressure during transit, giving your parcels maximum protection.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eHeavy-duty corrugated kraft cardboard construction for superior strength\u003c\/li\u003e\n\u003cli\u003eSize: 330 × 230 × 22 mm (External) \/ 320 × 225 × 20 mm (Internal)\u003c\/li\u003e\n\u003cli\u003eLightweight design approx. 45–50g per box for cost-effective shipping\u003c\/li\u003e\n\u003cli\u003eRoyal Mail Large Letter compliant for reduced postage costs\u003c\/li\u003e\n\u003cli\u003eQuick fold-and-lock assembly for easy packaging\u003c\/li\u003e\n\u003cli\u003eStrong edges and structure to prevent bending or damage\u003c\/li\u003e\n\u003cli\u003eSmooth kraft finish for a clean, professional appearance\u003c\/li\u003e\n\u003cli\u003eFully recyclable and eco-friendly material\u003c\/li\u003e\n\u003cli\u003ePack of 10 boxes for bulk use and convenience\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand:\u003c\/strong\u003e MASS DYNAMIC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaterial:\u003c\/strong\u003e Strong corrugated cardboard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSize:\u003c\/strong\u003e 33 × 23 × 2.2 cm (330 × 230 × 22 mm)\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MASS DYNAMIC","offers":[{"title":"10","offer_id":55583591694712,"sku":"MD-A4\/C4-P10","price":7.95,"currency_code":"GBP","in_stock":true},{"title":"25","offer_id":55583591727480,"sku":"MD-A4\/C4-P25","price":19.95,"currency_code":"GBP","in_stock":true},{"title":"50","offer_id":55583591760248,"sku":"MD-A4\/C4-P50","price":14.95,"currency_code":"GBP","in_stock":true},{"title":"100","offer_id":55583591793016,"sku":"MD-A4\/C4-P100","price":23.95,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1392\/6317\/files\/51e5cVvQkSL_1.jpg?v=1781693500","url":"https:\/\/massdynamic.uk\/products\/mass-dynamic-a4-c4-large-letter-postal-boxes-330x230x22mm-cardboard-shipping-boxes-mailing-boxes-for-royal-mail-pack-of-10","provider":"MASS DYNAMIC","version":"1.0","type":"link"}