〖High Quality Material〗This fasteners are made of ABS plastic,that will grip your bed sheets firmly. 4 Pieces ABS plastic fitted sheet holders have certain toughness and strong durability.〖High Efficiency〗The buckle on sheet holder can lock the sheets tightly, not easy to loose, helping you to have a good night without worrying about the sheet would get dirty, wrinkled and even slide down floor.〖Say Goodbye to Messy〗Duvet corner clips keep duvet corners in place, prevent duvet cover and duvet from bunching or shifting. Makes life so much easier!〖Easy to Install〗These bed sheet holders have a Non-slip design, simply insert the sheet holders under the mattress, press the button up to the upper hole and secure it.〖Widely Use〗Sheet holder usable on different sized beds