High School Boys 12 lb 103 mm Stainless Steel Shot Put. Lathe Turned to a Perfect Sphere. Quality Backed with 1 Year Warranty. High school boys 12 lb Stainless Steel Shot Put. Quality backed 1 year warranty. Certified Weight. Advanced throwers favorite. Designed for world class athletes. 12 lbs 103 mm diameter Best Selling! Lathe turned to perfect sphere