XTRA FLEX Radius forms are designed to easily shape extra tight radii (down to six inches) for walkways, patios, curbs and decorative flatwork. The system offers a long-lasting, “no nailing” alternative to forming radiuses with less durable and la-bour-intensive Masonite, plywood or bender board. These HDPE-constructed forms will not absorb water, rot or splinter, and feature easy setting and stripping. Features include fast “no tool” adjustment to the stringline, and for positive end connection, a steel sleeve eliminates labour-intensive splicing procedures.