Nylon Upgraded Design: 8 Pcs 3-way Triangular Sheet Holder Straps to Securely Hold Each Corner of the Sheet in Place and 2 Pcs 2-head Straight Sheet Strap for the Middle of the Sheet, with This Extra Straight Bed Clip, You Will No Longer Worry About Edge Separation, the Unique [8+2] Set of Sheet Straps Provide a More Stable Sheet Fixation, Ensuring Your Bed is Perfectly Tidy, Never Worry About Messy or Wrinkled Sheets Again. Durable Material: Sheet Elastic is Made of Elastic Nylon, Wider and More Durable Elastic, Anti-rust Nickel-plated Metal Clip Has a Built-in Plastic Clamping System, It is Convenient to Adjust the Length to Achieve the Desired Tension, Providing Stability and Stronger Grip. to Protect the Fabric from Damage, Enhance Your Sleep Experience with Our Sheet Clips: No More Worrying About Loose Sheets at Night. Versatile Use: the Designed [8+2] Sheet Straps Can Be Used to Adjust the Mattress Base, and the 2-head Sheet Clips Can Secure the Sheets to the Mattress from the Mattress Rise. Sheet Clips Are Suitable for All Types of Fabrics, Suitable for All Kinds of Sheets, Mattress Covers, Sofa Covers, Ironing Boards, All Types of Seat Covers and More. Easy to Install: Three Steps: 1)Open the Clip; 2)Feed the Sheet Corner Fabric into the Clip Point; 3)Press and Secure the Fabric with the Fasteners. Tighten or Loosen by Pulling on the Buckle Until You Get the Tension You Need, Helping Your Sheets Stay Firmly in Place at All Times, No More Messy and Wrinkled Sheets.