★ Waterproof Box Sheet ★ Very convenient for sweat, sebum, bedwetting by children, pet accidents, nursing care, etc. ★ Protects the mattress from moisture, allowing you to use it for a long time. ★ Waterproof with TPU material. The surface is polyester, which is excellent in moisture absorption and dissipation, and is also effective against dust mites. ★ Easy to install from anywhere with 360-degree elastic It doesn't slip easily even if you have a bad sleeping posture. 【Size】 Single 100 x 200 x 30 (cm) * Pillowcases are not included. 【Color】 Gray