1) One Piece surface raceway . Duct base and cover combined. 2) Easy application and save work time. Ideal for concealing cables. 3) Can be opened and closed repeatedly without cracking. 4) Hinged cover provide easy application of cabling without the need of removing the duct cover. Designed for cable and wire management applications where frequent movement or wiring re-routing are carried out. Allows quick access. 5) Available with bi-adhesive backing or without backing