JT Eaton 80QUBOX Lock-Up Total Encasement Bed Bug Protection for Queen Size Box Spring Traps bed bugs in its durable encasement and keeps dust mites, bed bugs and other allergens from invading your box spring Zipper cover fits snugly around a queen size box spring and prevents bed bugs and dust mites Made of durable stretch knit woven poly fabric with a zipper lock feature Machine washable Comes with a 1-year limited warranty