These double wall corrugated cardboard boxes with dimensions of 305x229x152mm are ideal for giving extra protection against squashing and damages for your heavy or fragile items. Secure the top and base with tape after a fast assembly, giving you an extra strength double wall cardboard box which is: Supplied flat packed Eco-friendly – fully recyclable and degradable Made from high quality 75% recycled paper Simple and quick to assemble Heavy duty, with a load capacity of 25kg