The Quality Park 10 X 13 Clasp Envelopes are high-quality adhesive envelopes perfect for securing and mailing important documents. Made in the United States, these gummed envelopes feature a moisture-activated adhesive for a secure seal. With a unit quantity of 28, this product is designed for efficient packaging and shipping needs. Ideal for businesses and industrial applications, these envelopes offer reliable protection for your valuable items.