5 packages of Crystal Mount Stamp Mounts, made in the United States, with the product code Y747B. These mounts are designed for use with stamps and publications, and are ideal for anyone in need of high-quality mounts and hinges. The brand, Crystal Mount, is known for their durable and reliable products, making them a top choice for users in the industry. Whether you are a stamp collector or a professional publisher, these mounts are sure to provide the support you need for your projects.