The kit described herein may include a first measurement element capable of measuring in at least the x and y planes without substantially moving the element. The kit may further include a second measurement element capable of measuring in at least the x and y planes without substantially moving the second element. In one embodiment, the measuring element is substantially rectangular, has an internal opening and it includes at least a first axis along the x-axis and a second axis along the y-axis. In another embodiment, the measuring element comprises an “L” shape having a first axis along the x-axis and a second axis along the y-axis, wherein each axis has a length of more than 150 cm.