✔Zip closure We put a high quality zipper on the bottom, the appearance is smooth and seamless, easy to separate and wash the duvet cover, more reliable and convenient than buttons. ✔Convenient Tie-ties at all corners prevent the lid from slipping off. No matter how you toss or turn, the quilt will stay in place. ✔Elegant Design Add elegance and comfort to your bedroom with this twin size bed sheet set. ✔Machine washable Machine washable to keep you fresh and comfortable all night long. Does not shrink after washing and maintains an ultra-smooth texture.