Pakage include: 4PCS/BOXFit-free Sheet Holder: The sheet holder provides a convenient solution to make your sheets perfectly aligned, eliminating daily pulls and repositioning.Sturdy and Long-lasting: Made of PP material, the locking plate holder provides firm grip, eliminating the need for clips or extra fasteners. Powerful design ensures long-term life, protects your sheets and minimizes the frequency of replacement.Strong Fit: Ideal for a variety of settings including family, children and hotel beds, they fit all sheet types to suit comfort. (12.3cm/5 inches)Easy to Install and Operate: Simple bedside setting is hidden in all four corners of the bed without lifting the mattress. The unique design locks the bedspread and sheets tightly, ensuring a whole tidy bed all day and saying goodbye to struggle with sheets every morning.High Comfort: Designed to prevent displaced sheets, ensure a comfortable night sleep and a smooth morning routine.