The most popular proximity card in existence, it is thin enough to be "wallet-friendly" yet durable enough to carry a lifetime warranty. It comes standard with a vertical slot punch and can accept photos and graphics via industry standard adhesive packs (dye sublimation or laminated). Size is 2.13" x 3.38" x 0.065" (54 mm x 86 mm x 1.6 mm). Sequentially numbered (C5 formatting excepted). Lifetime warranty.