Biceps rest as additional equipment for JG-01, JG-02 and JG-04 benches. It has a 3-step height adjustment, which allows you to adjust to the height of the exerciser. The upholstery elements have been adjusted to the anatomical shapes of the exercising person. . They are made of a thick, 4-centimeter-thick sponge with adequate hardness, ensuring comfort and safety during exercise.