Punching bag
– A cylindrical or cone-shaped sports equipment weighing 10, 15, 20 or more kilograms. The bag is used to work on the strength and accuracy of hits, as well as to improve the special endurance of the athlete. Often, boxing bags are filled with hair, sea grass, technical wool and
foam rubber (round foam pucks put on a steel rod). Bag stuffing is lined with felt and put in a canvas, imitation leather or leather cover. The dimensions of a punching bag - length 680-720 mm.
The diameter of the top part is 160-400 mm, the diameter of the bottom part is 350-400 mm.

Refers to the term for sports equipment