Whether you're a hotel or vacation rental owner, get a unique key card storage solution for your business with Guardian Key Card Holder Sleeves. These blank small envelopes are designed with a black design and can accommodate hotel key cards, gift cards, business cards, credit cards, ATM cards, ID badges, loyalty and travel cards, and more. Measuring a compact 2-3/8" x 3-1/2", they are ideal for storing and keeping key cards protected. Plus, they're crafted with high-quality materials and designed to last. The envelopes are designed with a deep thumb-cut design for easy access to your card. Whether you're giving out key cards at a hotel, giving a gift card, or protecting a credit card, these card holders prevent the wear of a card's magnetic strip by keeping cards separated and secure. In addition to their functional design, these envelopes are versatile and can also hold some small items. Their compact size even allows you to store two cards at once. Our envelopes, gift cards, business cards, and envelope seals are proudly made in the USA. Simplify your storage needs and experience the peace of mind that comes with security and organization!