Protect yourself more fully from bed bug infestations with a Protect-A-Bed® box spring cover. designed specifically for box springs to block bed bug infestations Bug. Lock Secure. Seal 3-sided zipper system prevents bed bugs from entering or leaving the box spring. Polypropylene. Washable. 2-year manufacturer's warranty. Imported.Note: For California king size bed, order a quantity of two. For a regular king size bed, order a quantity of two Twin XL encasements. Twin: 38x75" Full: 53x75" Queen: 60x80" King: 38x80" (two per bed) Cal. King: 36x84" (two per bed)Features: Bed Bug Blocker. Bedding Closure Type: Zipper. Bed Size: Full. Mattress Pads & Toppers Type: Mattress Encasements. Country of Origin: Imported