The package includes: 20 Poly mailers 6" X 9" inch (Little flowers Pink color). Inside measure. Unpadded mailers. Superior tear and puncture resistance. The adhesive provides a durable closure with high resistance. High efficiency envelopes are perfect for a wide variety of non-fragile shipping items. Water tear and puncture resistant. Approved: UPS, FedEx, USPS, Canada Post, ect. These poly mailers reduce expedition costs (Light weight).