Holds up to 8 non-ebossed cards and 4 keys, or a combination of keys and tools, plus a combination of cards and cash. The cover is a carbon fiber/fluorescent acrylic laminate. The clip is formed from fatigue-resistant, 301 half-hardened stainless steel, and includes a carbon fiber, composite veneer that protects embossed cards. Battery (CR 2025) life exceeds twenty-four hours of continuous run time or at least one year in dormant state. 4-in-1 Tool is included.