Stainless Steel Sure-Fit Insulation Elbow Covers are made in two, precision-formed matching halves and are sized to cover and weatherproof insulated 90° and 45° elbows along pipelines. They are manufactured from Type-316 Stainless Steel in .016" thickness. They can be used on long and short radius, butt weld, socket weld, and screwed pipe elbows from 1/2" to 10" Iron Pipe Size, inclusive.