Keep your shipments secure and professional with these blank shipping envelopes, sized at 32.3x22.9cm. Crafted from durable gray-back white cardboard, these envelopes offer excellent strength and rigidity to protect documents, photographs, or fragile items during transit. The blank exterior allows for easy customization with labels or handwritten details, making them versatile for both personal and business use. Lightweight yet sturdy, these envelopes are perfect for individuals, crafters, and small business owners looking for reliable and eco-friendly packaging solutions. Whether for mailing documents or packaging handmade goods, these cardboard mailers combine functionality with a polished, professional appearance