While the Live Free Mattress Cover offers one level of protection for the bed, the Live Free Box Spring Wrap effectively treats the box spring, which is a common area of infestation. This elasticized textile band is designed to fit around the outside of the box spring and can be installed without removing the mattress. Bugs attempting to crawl out start dying as they come into contact with the treated fabric. Used in combination with the Live Free Mattress Cover (sold separately) for maximum results. Sizes range from Twin to California King, 9 depth. The proprietary blend of plant-based materials used in Live Free products is completely toxic-free, making it safe for use around children and pets. In addition to bedbugs, these products also effectively control fleas, ticks, mites, scabies, silverfish, carpet beetles, cockroaches and German cockroaches. This item can be used in conjunction with other Live Free products to create a comprehensive bed bug barrier system that eliminates existing infestations and protects every part of the home 24/7 from the potential of re-infestation.