Where four rails cross in the same plane, the Ball Cross ties them together at a single point. Four 1.5-inch OD tube ends seat into one cast fitting with a ball at the center, producing a flat four-way junction for a rail grid, a partition infill, or a guard rail with a crossed brace. The ends disappear inside the ball, so you cut four straight pieces and let the fitting hold the right angles. The 1.5-inch size is the everyday handrail diameter, and this fitting comes in three finishes to match it: polished brass for a traditional rail, or 304 stainless in polished or satin for a bright or low-glare interior run. It pairs with the ball elbows, tees, and side-outlet fittings in the same 1.5-inch line, so a whole grid goes together from one family. The 706/2 is the same cross for 2-inch tubing. Ships from US inventory.