Steel balls for blacksmithing, fencing, and railing construction: solid balls, smooth and hammered, ranging from Ø 10 to 120 mm; hollow and semi-hollow balls ranging from Ø 30 to 1,000 mm; as well as balls with blind holes, with through-holes, and with internal threads. Also available: Ball-head bolts and end caps for tubes with diameters from 26.9 to 60.3 mm. Feldmann manufactures special sizes in-house.