Rhythmic Gymnastics is a discipline performed primarily by women. It is performed to music with the gymnast using hand apparatus: rope, ball, hoop, clubs or ribbon.
Behind the flawless beauty of the sport lies a complex combination of high criteria and firm requirements as to the content of the routines, the degrees of difficulty involved, the technique of handling the apparatus and overall body control.
Rope
The rope may be of hemp or synthetic material. Its length is in proportion to the size of the gymnast. Instead of a handle, each end of the rope terminates in a knot.
Hoop
The hoop may be of wood or plastic. Its interior diameter is from 80 to 90 centimetres; its minimum weight is 300 grams. It must be rigid enough to retain its shape.
Ball
The ball may be made of rubber or synthetic material. Its diameter is between 18 and 20 centimetres, and its minimum weight is 400 grams.
Clubs
The clubs may be made of wood or synthetic material. Their length is between 40 and 50 centimetres. Each club weighs 150 grams.
Ribbon
The stick has a 1 cm diameter and a length from 50 to 60 centimetres. It is usually made of wood, bamboo, plastic or fibre-glass. Most often the ribbon is made of satin or a similar material without starch. Its maximum weight is 35 grams, its width from 4 to 6 centimetres, and its length 6 meters at the minimum.