Reliable Protection for Hardback Books & Cookbooks The C3 book wrap, also known as CPF008, is built for hardback books and cookbooks, at 311 x 240mm with a variable depth of up to 50mm to handle thicker titles without wasted space. Made from corrugated kraft cardboard, FSC® certified, with impact-buffer edges and strengthened, glued corners, it's built to protect heavier reference and recipe books through the rougher handling they often get in transit. Every C3 wrap uses our twin peel & seal system with a tear-strip, keeping internal flaps securely fastened during transit while remaining easy for your customer to open. The hot melt adhesive offers 300x the tack of standard tape and peels 90% faster, thanks to its fast-release paper. A close, accurate fit also works in your favour on postage. Pack under 25mm deep and it qualifies for Royal Mail's large letter tariff, genuinely maximising that size limit (353 x 250 x 25mm) for a book this size, keeping it letterbox friendly. Pack anything thicker, up to the full 50mm depth, and it falls under Royal Mail's small parcel tariff instead. Either way, less wasted space per item means more units per pallet, up to 60% more, in fact, cutting transport costs alongside your mailing costs. Need to order in volume without a storage headache? We hold large quantities of C3 book wraps in stock, ready to ship. See our full range of Book Wraps in all sizes. Why Choose Our C3 Book Mailer Genuinely maximises the Royal Mail large letter tariff for hardback-sized books 311 x 240mm, variable depth up to 50mm, also known as CPF008 Corrugated kraft board, FSC® certified, with impact-buffer edges and strengthened corners 25% faster to pack thanks to overhanging release paper Hot melt peel'n'seal closure, twice the strength of standard tape Up to 60% more units per pallet, lowering transport costs 100% recyclable Product Specification Capacity: Fits hardback books and cookbooks Material: E-Flute corrugated kraft board, FSC® certified Size: 311 x 240mm, variable depth 0–50mm Postage compliance: Large letter (letterbox friendly) when packed under 25mm; Royal Mail small parcel tariff when packed over 25mm, up to 50mm Sealing system: Twin peel & seal with tear-strip, hot melt adhesive Sustainability: 100% recyclable, FSC® certified, plastic-free Your packaging is the first time that your customer will physically experience your product. Getting it right is your chance to make the best first impression; we can help you do just that.