Product Overview6-in-1 Titanium Multi-Tool Keychain. The TC4 Titanium Multi-Tool Keychain with Knuckle Ring delivers six essential functions in one ultra-lightweight package.Key Features 6-in-1 Multi-Function Design: Knuckle ring, bottle opener, pry bar, Allen wrench, and more in one tool TC4 Titanium Construction: Aerospace-grade titanium - very solid yet ultra-light Ultra-Lightweight 31g: Lighter than most car keys - for keychain carry Slim 7mm Profile: Ultra-thin design for minimal bulk CNC Precision Machined: Computer-controlled manufacturing with carefully treated details Integrated Keychain Hole: Built-in attachment point for convenient carry Specifications Color Blue Oxidized, Stone Wash, Original Color Available Variants 3 Frequently Asked QuestionsIs this titanium knuckles a single-finger or multi-finger design?This is a single-finger design, giving it a more compact profile than a traditional four-finger style.How do I choose the right fit for this titanium knuckles?Compare the listed finger-opening and overall dimensions with your hand. A comfortable fit should not require forcing your fingers through the openings.Is this titanium knuckles better for collecting or display?It works well as an EDC-themed collectible or display piece, especially for buyers who like tc4 multi-tool keychain.Which color looks best on this titanium knuckles?Available choices include Blue Oxidized, Stone Wash, Original Color. For daily use, pick the finish you will enjoy carrying most; for a gift or display piece, choose the one that best matches the recipient's style.