One of the main components of the fishing rod is a coil, which serves for storing and winding the fishing line and facilitates weighting fish. Using a coil mounted on a fishing line, you can throw a bait for a long distance. Fishing coils are of two types - inertial and non-inertial. Inertia coils appeared a long time ago and in the days of the USSR were the only affordable fishing coil. The most popular were the simple 'Neva' and a little more complicated '' Kievskaya '', which had the regulation of free movement, which prevented the formation of 'beards'' at reproaches . These coils were used, mainly spinigists (including trolling), flypads and carp fishing enthusiasts.