Feature●TRAINING DISCUS: Perfect training throws Discus track and field.●DURABLE: Solid one-piece rubber construction.●WEIGHT: 1.75KG.●EASY TO USE: Wont scuff floors or walls. Suitable for hard grounds or indoor training. Meets High School specifications.Description The lowest rim-weighted discus is made from rubber. The Amber rubber discus is great for beginning throwers because it is the most durable and can withstand years of use.