The Uline S-6381 Magnetic Vinyl Envelope is a high-quality product designed for business and industrial applications. With a size of 5" x 3" and a quantity of 50 envelopes in a box, this envelope is perfect for packaging and shipping needs. The magnetic closure ensures secure delivery, while the durable vinyl material provides protection for your items. The Uline brand is known for its reliability and this product lives up to that reputation, making it a great choice for businesses looking for efficient and reliable shipping solutions.