A gripper device made of rigid material and having only two members. The two members are basically shaped alike, each having a single, longitudinal axis edge that faces and interlocks slidingly with the other. One of the members has a number of cord or cable retaining cut-outs cut through an axis perpendicular to the sliding axis of the facing members. Provision is made for preventing the relative sliding of the members when cords or cables are being retained by the device, which can be secured by a single lock. The gripper device is small, easy to use and economic to produce.