This pack of 100 polyethylene bubble envelopes measures 4 x 8 inches and is perfect for shipping small items with extra protection. The durable and waterproof material ensures that your package arrives safely and securely. Whether you are shipping important documents or delicate items, these envelopes are an ideal choice for all your shipping needs. The self-sealing closure makes it easy to seal and secure your package, while the lightweight design helps keep shipping costs down. Buy with confidence knowing that your items will arrive in excellent condition.