TA Sport Vinex JKB-200G Elementary Javelin Ball is made of high quality PVC material. Comes with a grip around the knob that simulates holding on to a javelin. This allows athletes to train their javelin throwing techniques indoor without the use of a javelin and drill in the proper throwing form. Recommended for beginners in the practice of javelin throwing. A spherical shape of approximately 9 cm in height with a handle at the top of 3 cm in height. Total size: 12 cm. Comes in green colour. Weight: 200 g.