The Track and Field Black Rubber Discus, Official - 1 Kg is ideal for training and competition. It has fine-tuning and design essential to keep up in the field and is constructed with the official weight and specifications. The athlete must learn and master the aspects of momentum, trajectory, and physics in order to execute successful throws. This throwing event equipment weighs 1 kilogram, making it ideal for perfecting your athletes form and skills. Also enjoy free shipping and a limited 1 year warranty! Get the Track and Field Black Rubber Discus, Official - 1 Kg today!