Catching and killing up to 20,000 flies, this non-toxic trap protects your home and yard from flies! One Flies-Away protects a large area of your property for 30 days,catching and killing flies before they enter your home. Simply add water and attractant bait (included), then hang 40 to 45 feet away from the area you’re protecting. Each baited trap safely disposes after 30 days. 11 1/4"L x 7 3/4"dia.