The image shows a white rectangular structure with four white poles on top of it. The structure appears to be made of plastic or a similar material and is placed on a grassy surface. The poles are arranged in a triangular formation, with the top pole on the left and the bottom pole in the center. The top pole has a small knob on it, which is likely used to adjust the height of the poles. The bottom pole is attached to the base of the structure with a wooden frame. The frame has a grid-like pattern on it.