Our Premium Eco Clear Bags offer a green packaging solution for stationery products. The GC4X9 card sleeve measures 4 5/8" x 9 3/4" and is a good fit for a #10 business size envelope and card. Other uses include office supplies, pencils, candy, and crafts. This 1.5 mil bag is made of PLA material that is derived from plants and is certified compostable. Pliable and crease-resistant, this bag has the adhesive on the bag flap for easy sealing. The adhesive is on the bag flap to secure your product and can be adjusted for a customized, snug fit. USPS Approved for bulk mailings.