This Adjust-A-Brush No-Mold Kit For Refrigerators is an ingenious way to store your cooler or refrigerator without mold. It will hold the refrigerator or freezer door or cooler lid slightly open to prevent mold buildup while in storage. It allows light and air to circulate. It works with the door latch to prevent the door from swinging back and forth. It is made of quality plastic for durability. This refrigerator mold kit works well with most double door refrigerators and is ideal for RVs.