Contempo Creatures Window Bird Feeder for Wild Birds| Strong and Secure Suction Cups | Drain Holes to Prevent Moldy Seed | 100% Clear Acrylic | All-Weather, Including Winter Feeding SQUIRRELS CANNOT CLIMB GLASS - Mount high on a window away from jump-off points or ledges. POWERFUL SUCTION CUPS - Attaches securely and easily to any window. Should be removed once per month to clean and secure again. ENTERTAINMENT FOR CATS, DOGS AND KIDS - Provides a fun way to watch wild birds from inside your home. NO MORE MOLDY SEED! Drainage holes prevent seed from becoming soggy or moldy. SATISFACTION GUARANTEED | If you are not happy with your purchase for any reason, we will issue a full refund.