Thanks very much for your inquiry and your interesting in our fingerprint lock. It will be our great pleasure if we can cooperate with you. We are a manufactory and specialized in designing and producing fingerprint door locks, luggage fingerprint locks and fingerprint safes, also obtained the patent of invention and appearance. Our fingerprint lock is based on the technology of living body fingerprint recognition (Silicon inductance transducer). We use Nickel brushed surface treatment, and the color we now have are silver, bronze, gold and light gold, of course it is depend on your request. And the brand of our briefcases and luggages are Chrisdien Deny and Ruwishda. So you can be at ease on their quality. High quality, reasonable price, professional and good service will help you reduce the costs and gain great markets. Pls feel free to contact me for more information or view our web:*****