Origin [edit]. The systematic use of belt color to denote the rank was first used by Kano Jigoro, the founder of judo, who first devised the colored belt system using obi (sash), and awarded the first black belts to denote a Dan rank in the 1880s. Previously, Japanese Koryu instructors tended to provide certificates.
Everything for a safe and comfortable trip. Air safety is the theory, investigation, analysis, and categorization of flight failures (aircraft incidents and accidents), and the prevention of such failures through regulation, education and training.
Wheelchair Safety & Fall Prevention. While a wheelchair is designed to provide safe & secure transport, there can be a risk of injury if it isnât used properly. Fortunately, our wheelchair safety & fall prevention solutions can help. This category is comprised of seat belts, alarm systems, wheel locks, and more, all of which are designed to protect you or your loved one from harm.