Chrome metal clips and Nylon

Durable & Practical - The bed sheet straps are made of sturdy chrome metal clips and thick elastic bungee cords that grip your sheets firmly and won't break easily. These sheet fasteners are easy to put on and keep the sheets in place, so you don't have to constantly fix them. The adjustable length provides the desired tension.

Good Effect - These sheet fasteners have a built-in plastic clamping system that protects the fabric from damage. Holds firmly in place, sheets, mattress protectors, tablecloths, ironing board covers, covers and more. Always keeps the corners in place and you no longer have to worry. Dimensions: 1.2 \"(W), 5.7 \" - 14.2 \"(L).

Exclusive Design - These versatile sheet fasteners work with all types of bedding and require no heavy lifting. And with the strong construction of these straps, your sheet will stay in place for a long time and keep your bed tidy at all times.

Perfect for Many Occasions - These sheet fasteners secure your sheet corners diagonally across all sizes of mattresses and make your life easier. Perfect for fitted sheets or flat sheets on various types of beds, such as standard size, odd-shaped beds, foam mattresses, mattresses with toppers, air mattresses, RVs and caravans and more.