Heavy-duty elastic straps and nickel-plated clamps High-quality material: These bed sheet holders are made of sturdy chrome metal clips and heavy-duty elastic bungee cords that grip your bed sheets firmly in place. Easy to put on and keeps sheets in place, so you no longer need to fix your sheets constantly. Adjustable length allows for desired tension. Triangle design prevents the elastic from sliding at all times. Stable triangle design: As we know, the triangle is more stable than other shapes. So our triangular bed sheet suspenders can keep your bed and sheets neat at all times. Adjustable elastic straps: Wider elastic provides a stable and stronger grip for heavy-duty use; Easy to put on and keeps corners in place, a lifesaver! Perfect fitted sheet and mattress cover fastening system. Wide compatibility: Our bed sheet holder straps fit fitted sheets and flat sheets; This versatile sheet gripper works with all types of bedding, and with the strong construction of these straps, your sheet will stay in place for a long time, keeping your bed always looking great. These fasteners can also be used on tablecloths, grill covers, car seat covers, boat seat covers, motorcycle seat covers, scooter seat covers, sofa covers, chair covers, and more.