For the most common turn a handrail makes — a sharp 90° corner at a rectangular landing — this flush elbow does the job cleanly. Slide a 1.5" OD tube into each end and the joint sits flush, so nothing juts out along the grip. It's the default 1.5" corner fitting for standard stair and landing geometry, at home on one staircase or a building full of them. The five-finish range covers most looks and settings: polished brass for a traditional rail, 304 stainless polished or satin for a bright or low-glare modern interior, and 316 stainless polished or satin where salt or chlorine calls for extra corrosion resistance — a coastal rail or a pool deck. It pairs with the matching 1.5" flush fittings so a whole run goes together from one line. Note the OD won't interchange with 1.67" or 2" tubing.