Wildcard is a credit card sized, hyper-light knife that fits in your wallet. Designed with overall functionality in mind, the patent-pending Fly-Off™ technology allows you to remove the blade quickly without any tools. This allows you to easily replace blades, and also makes the product TSA-compatible. If you forget your Wildcard at security, simply remove and toss the blade, and replace it at a fraction of the cost of the tool.