I ordered the can of foaming insulation to use around the lips of some outdoor herb barrels to prevent wasps from building nests under the lip. However, I did not realize you had to purchase the foaming gun separately, as it was not included, and the foaming can will not work without it.Once my purchased foaming gun arrived, the can easily attached and worked exactly as advertised.I am very pleased with the functionality and outcome, as I achieved my desired results.*See my video and pictures for more product details.