Jiffy Padded Mailer 66996 Self Seal, 0, 6" x 10", Natural Kraft (Pack of 250) The mailer's macerated paper padding expands during use, providing protection throughout shipping cycle A smooth inner liner and pre-scored flap provide easy product insertion and efficient closure Convenient tear tape allows for quick and easy opening Contains 100 percent recycled paper fibers, and can be recycled with mixed paper products This product is sfi certified