The Repair Kit 20121 manufactured by ROMIX is an electronic component used to fix or repair various types of devices and machines. It contains a variety of different-sized screws, nuts and bolts, as well as a pair of pliers and a screwdriver. The kit also comes with a set of electrical terminals and connectors, jumper wires, along with lugs, wire ties and heat shrink tubing. This kit can be used to work on almost any type of equipment. It is a great tool for maintenance and repair professionals.