Hollow steel balls made of S235 steel, without hole—available in eighteen diameters ranging from Ø 30 to Ø 1,000 mm with wall thicknesses from 2.0 to 4.0 mm. The hollow design allows for large diameters with low weight and is the standard solution for decorative, architectural, and design elements beyond the sizes of solid spheres. Custom sizes are manufactured in-house.