The UFO floor drain has only one size product, but the cover does not have suction. Do not intentionally move it after normal placement. It will not move. If there is a blocking piece on the pool or the floor drain cover needs to be removed before use! Press to switch the mode to drain and filter Press the sides again to stop the water. Put it on a flat surface. The diameter of the nozzle is between 35-95cm. If there are individual warps, it is squeezed for express delivery. It can be folded by hand and corrected for a while. It will be flat immediately.