Weighted Blanket Cover DESIGN- Thicker And Wider Ties To Support Heavier Weighted Blankets. With 8 Ties, Every Corner Can Be Taken Care Of TECHNOLOGY- Double Layer Sewing Technology Will Make The Duvet Cover Stronger MATERIAL- Uses Soft Polyester, Which Is Both Breathable And Stable EAZY CARE- Machine and hand washable, tumble dry low or hang dry, do not iron, do not dry clean