Koolkarz is a hi-tech products distribution and development company committed to the biometrics market and car security & safety industry. We design, develop and sell biometric products that utilize the fingerprint as a unique form of identification. We offer fingerprint door locks, biometric access control systems, and other biometric fingerprint technologies that are the highest-quality, most reliable products in the biometric security industry. For car safety, we offer an elegant design of reverse and parking system.