Pipelife 560016 is a bending spring sized for 16 mm plastic installation conduit. Slid over the outside of the conduit, it prevents kinking and ovality when forming smooth bends by hand. Use is limited to plastic tube; the tool is not intended for steel, copper, stainless steel or aluminium conduits. Typical applications are on-site radius bends of electrical installation conduit during first-fix rough-in.