Build a handrail run to the 42.4mm European standard with 1.67" OD Round Tubing — the rail material you cut to length for a stair, balcony, promenade, or outdoor run. Its heavier.080" wall gives a solid, -feeling tube, and 316-grade stainless brings marine-grade corrosion resistance for coastal and exposed installations. Order it by the length in 4, 5, 6, 8, 12, or 20 feet to match your layout. Choose 316-Grade Polished Stainless Steel for a bright finish or 316-Grade Satin for a softer, low-glare surface. The 1.67" OD matches Lavi's Glass Cap Rail channel and the.080"-wall fittings in the same line, so a run built to the 42.4mm standard comes together from parts sized to fit each other.