Mailing Packs & Boxes

Double Wall Corrugated Cardboard Shipping Boxes - Size 457 x 305 x 305mm (18 x 12 x 12 Inches) - Sturdy Packing Boxes for Delivery, Parcels, Moving, and Mail Postage - Pack of 20 Boxes Heavy-Duty Double Wall Strength for Secure Shipping: Designed with double wall corrugated cardboard, these 18 x 12 x 12 inch boxes offer extra durability and crush resistance—perfect for protecting fragile or valuable items during storage, postage,... Double Wall Corrugated Cardboard Shipping Boxes - Size 457 x 305 x 305mm (18 x 12 x 12 Inches) - Sturdy Packing Boxes for Delivery, Parcels, Moving, and Mail Postage - Pack of 20 Boxes