The white mailing boxes are elegant in appearance edges neat, smooth, and with no burrs, Suitable for specialized business boxes to display your brand logo, bar code, and label, while also free smiley face stickers for easy DIY personalized box design. The shipping boxes are 12 x 9 x 3 inches, and 20 mailer boxes are packaged in a carton Flat shipping flat packaging saves space and makes storage more convenient. Made of recyclable ECT-32 corrugated cardboard box, Lightweight but sturdy for shipping, Rugged 3 layers of thick kraft construction are effective impact resistance. Label locking ensures item safety during transit and superior protection for your items. The storage box can be DIY into your favorite style. The white shipping boxes can be folded easily without tapes, glue, or staples, which saves time and effort in shipping boxes for small businesses.