[Easy to Use: First follow the arrow in the opposite direction and find the end of the arrow is the inflation port. Second push the air pump into the inflation port to inflate. Finally remove the air pump and the wine protector bags will automatically seal All-Round Protection: Made of premium PE/PA material our wine bags for travel are shockproof pressure-resistant and sturdy giving your wine bottles good cushioning protection and reducing the possibility of breakage during transportation Independent Columns: Each glass bottles packaging sleeves has 7 independent air columns one air column breakage will not affect the other air columns Package & Size: The package contains 10pcs wine bags and an inflatable pump. Suitable for protecting wine bottles up to 13.38 inches in height and 3.9 inches in diameter when inflated Wide Use: These wine bottle shipping packaging bags are great to protect all kinds of fragile items such as wine bottles glasses fruits perfumes cosmetics ceramics electronic products and more]