Design with a combination of cold metal and minimalist colors ^^ Ergonomic structure design at both sides of the bottom for easier, more comfortable use ^^ High quality and tough Zinc Alloy material. Capless design eliminates the problem of losing the cap ^^ Unibody design and COB assembly process technology offer excellent capabilities of waterproof, dustproof and shockproof ^^ Lifetime warranty. Free Technical Support and Customer Service on TEAMGROUP official website. ^^ Refer to the latest version on the official website. In case of discrepancies, the official website prevails.