A3 Corrugated Cardboard Sheets for Packing, Mailing, Arts & Crafts. 3mm Thickness, (297 x 420 mm) Kraft Board Large Sheets, Protective Boards (12 24 Pack) LEO Design (12)

Sturdy Construction: A3 corrugated cardboard sheets crafted from sturdy 3mm single-wall corrugated material. These 297 x 420 mm kraft board sheets provide maximum rigidity and structural strength for packaging, mailing, crafting, and protective storage applications Premium Thickness and Durability: A3 rigid backing board for prints features premium 3mm thick single-wall corrugated construction with 3 layers of durable kraft board. Designed to offer exceptional stability and crush resistance while maintaining a lightweight, easy-to-handle profile for all your project needs Versatile Protective Inserts: A3 cardboard divider serves as versatile protective inserts for separating prints, artwork, photos, postcards, and magazines during mailing. Also suitable for flower pressing, welcome signs, photo frames, and office organization projects Generous A3 Dimensions: Generous A3 dimensions measuring 29.7 x 42 cm (11.7 x 16.5 inches) providing ample surface area for school projects, dioramas, display boards, craft boxes, and creative DIY applications British Manufacturing and Recyclable Material: Manufactured in Britain from high-quality, recyclable corrugated cardboard. The traditional kraft brown finish offers a natural, professional appearance suitable for both practical packaging and creative crafting projects Pack Contents: Contains 12 sheets of A3 corrugated cardboard per pack, providing sufficient quantity for multiple projects, mailings, or storage organization needs Easy to Cut and Customize: Lightweight and easy to cut material allows for customization to fit specific project requirements while maintaining structural integrity and protective qualities