Adjustable: These convenient sheet clips feature 5-level adjustability, accommodating mattresses of various thicknesses. Set of 4: This set of 4 securely fastens to the four corners of your bed, effectively preventing sheets from slipping. Ease of Use: Designed for easy installation, simply clip onto the sheets for a secure hold. Durability: Made with high-quality materials, ensuring a sturdy construction that withstands long-term use. Multi-Purpose: Suitable for use not only with bed sheets but also for securing sofa covers and tablecloths. Prevents sheet slippage, ensuring a comfortable night's sleep.