At 1" OD — the smallest rail size in the line — this radius elbow turns a 90° corner on a smooth curve, so a hand moves continuously around the turn. That suits the lighter, lower rails: a secondary handrail at a child's or wheelchair height, a residential stair, a spa or therapy bar, or a pool-ladder rail. A tube slides into each end for a flush joint. Three finishes are offered: polished brass for a traditional look, or 304 stainless polished or satin for a modern one. Since this radius bend is the only 90° option at 1" OD, it is the standard choice whenever a small-diameter rail needs to turn a corner smoothly.