JAM Paper Recycled Photo Mailer Envelopes are guaranteed to preserve your photos and precious memories. These mailer envelopes are stiff and made of 130 lb. cardstock to keep photos from bending. The tuck flaps are sturdy and guaranteed to keep the envelope closed, without tricky mental clasps or sticky gum adhesives. These white envelopes are perfect for professional and personal use, and are available in a variety of sizes to find the perfect fit for your photos.Details:White20" x 27"130 lb/352 gsmTuck flaps6 envelopesCardstock