Custom Poly Mailer: Impress recipients by these custom printed poly mailers. Please send over your logo design through customer message or email, we will response asap and show you the renderings. Sizes: Multiple sizes for choosing, from medium to large size, can fit daily use Printing Available: single-sided printing, monochrome logo, two-color logo, CMYK multi-color Delivered Time: For custom products, it takes about 7~15 working days for production and 20~30 working days for shipping PREMIUM QUALITY - The shipping bags are crafted with 100% virgin polyethylene which is incredibly durable and strong on the outside with tough protective black inner linings inside. Note: Please contact the customer service while placing the order or having any questions about the product