This is a foldable envelope for sending packages up to 4kg that do not contain lithium batteries or high-pressure gas. - Quantity: 5 sheets - Size: 430mm - Weight Limit: Up to 4kg - Precautions: No lithium batteries, no high-pressure gas, no flammable liquids - Design: Foldable Although unused, there are traces of sticker removal on the item name field, and some areas may still have some adhesive residue. The envelope will be folded for packaging, so there will be creases. Thank you for viewing.