Tractor in confined areas. The most common variation of the classic farm tractor is the hoe, also called a hoe-loader. As the name implies, it has a loader assembly on the front and a backhoe on the back. Backhoes attach to a three-point hitch on farm or industrial tractors. Industrial tractors are often heavier in construction, particularly with regards to the use of steel grill for protection from rocks and the use of construction tires. When the backhoe is permanently attached, the machine usually has a seat that can swivel to the rear to face the hoe controls. Removable backhoe attachments
Rear-view mirror a new bicycle and require an additional purchase. In 1956, the Civil Aeronautical Administration proposed a rear-view mirror mounted right above the pilot to keep an eye when private aircraft are landing or taxiing on the runway to prevent collisions. Fighter aircraft usually have one or more rear-view mirrors mounted on the front canopy frame to watch out for chasing aircraft. Some computer monitors are fitted with rear-view mirrors to see if anyone is positioned behind the user where they can see sensitive information, such as names and passwords, being keyed in or on the screen. These are used especially