Practice and improve your technique with the Gill(R) Cast Iron Training Shot. The tough 15 pound cast iron design makes this shot ideal for every training session. A uniform, 128 mm diameter lets you find the perfect hand placement as you increase your strength and performance from the throwing circle. FEATURES: Training shot Constructed of durable cast iron Weight: 15 lb. Diameter: 128 mm One-year manufacturer's warranty Model: TS12815 For additional information relating to the Manufacturer's Warranty, please contact 217-367-8438.