A device to space vertebral members that may include a deploying device with a first member with an elongated first shaft and a first body at an end of the first shaft, a second member with an elongated second shaft that extends around the first shaft and a second body at an end of the second shaft, and a third member with an elongated third shaft that extends around the second shaft and a third body at an end of the second shaft. The device may include a first plate positioned on a first side of the deploying device, and a second plate positioned on a second side of the deploying device. First, second, and third jointed linkages may be spaced apart along the deploying device and each having a pair of links and each having a first end attached to the first plate, a second end attached to the second plate, and an intermediate joint connecting the pair of links together and being attached to the deploying device.