065″ Wall-SS304 4″ Stainless Steel Pipe Bend Tube for Car Exhaust Elbow Modified, Stair Handrail Bend,etc (4pcs). 065″ Wall (1.5mm / 0.06″), Bend Radius: 1.5D. Easy installation: 45 degree stainless steel exhaust elbow for Car Exhaust Elbow Modified, Stair Handrail Bend Tube, Railing elbow, Designed for cutting, splicing, or welding to suit custom applications.