Expand-a-Gate is constructed of heavy-duty molded yellow and black plastic. One side of gate includes reflectors for better visibility. The end pieces are hollow and can be filled with liquid for added weight and stability. Expand-a-Gate is designed to set up quickly and easily wherever it is needed. It is ideal for preventing potential accidents. The lightweight design allows personnel to quickly retrieve the gate and limit access to unsafe areas. Interlocking and nestable. It is not spring loaded so it will not automatically close itself. No lock to keep them in spread open position so we recommend filling legs for added weight. 38" Height.