Long-term home storage. Opened briefly to check the contents, then immediately resealed! 4 packs → Unused! All contain 5 sheets. The remaining 1 pack has 3 sheets remaining, so it's included as a bonus. No returns for initial defects. Simple packaging. Shipped via post. Please refrain from purchasing if you are concerned about the shape being affected. Please refrain from purchasing if you are overly sensitive to these issues.