Ensure your post arrives safely and intact with these protective bubble envelopes. The 100 pack of white Size B Mail Lite bubble envelopes from Sealed Air are a great way of getting value for money. They are durable and tough, sure to keep your items protected in the post. The white kraft paper exterior contains a lightweight sealed AirCap bubble lining to ensure the risk of damage in the post is reduced. Ideal for sending flexible items such as books, photographs, jewellery and even small items of clothing.