Replacement Kit Includes: (3) Deer Fly Ball trap, (3) inflation needle Coverage Per Acre: Takes 2-3 Deer Fly Balls to effectively cover 1 acre and eliminate deer flies, horse flies, stable flies, and more flying and biting insects Sticky Coating: Bug Trap is designed to work with Catch EM’ sticky coating (sold separately); Catch EM’ is an odorless bug killer with zero pesticides or electricity needed to kill those irritating biting insects; Safe to use around children and pets Ball Traps Work Great For: Greenhouses, pool areas, backyards, gardens, animal stables or shelters, orchards, barns, cabins, and many more places with it's heavy-duty, weather resistant PVC material Easy Fly Trap Setup: Inflate ball, coat with Catch EM sticky coating and hang; Most effective to hang ball approximately 4-5 feet off ground in the sun adjacent to the shade and re-apply Catch EM' every 2-3 weeks; Every ball trap has a loop molded onto top - enabling it to be hung from a tree or pole The Deer Fly Ball is designed to catch and hold onto pesky biting insects that just never seem to leave us alone! Deer flies and many more biting insects are a short list of insects that the Bug Ball is effective against. Every Bug Ball is made from a heavy duty-weather resistant-blue PVC ball and is equipped with a molded loop on the top and an inflation port on the side. The molded loop on the top enables it to be hung from a tree or pole with a rope or to be hung from a shepherd’s hook. It is most effective to have the ball suspended approximately 4-5 ft off the ground. The ball is designed to work with Catch EM’ sticky coating (sold separately). Catch EM’ is an odorless Eco- Friendly bug killer with NO pesticides or electricity needed to kill those irritating biting insects. Catch EM’ is also safe to use around children and pets. It takes 2-3 Deer Fly Balls to effectively cover 1 acre and works great in greenhouses, pool areas, backyards, gardens, animal stables or shelters, orchards, barns, cabins, and many more places. Every ball can be set up in 3 easy steps; Step 1: Inflate the Deer Fly Ball until firm (around 18 in). Step 2: Hang the Bug Ball in a tree, on a pole, or from a shepherd hook 4-5 ft. off the ground. Step 3: Apply the Catch EM’ Liquid (sold separately) thoroughly all over the Deer Fly Ball surface.