Nail ropes at the four corners of the poncho, preferably elastic, and attach hooks at the other end of the rope. When using, wrap the poncho and hook the ropes at the four corners on the tray, so that the poncho will not drift away.

Another method: wrap the whole goods tightly with plastic wrap, wrap them around several layers, and then take them away by hand, so that the layers of plastic wrap can be closely attached without water leakage.