1. Adjustable: Knife tensioner, can be used for extra large and double beds. Used for mattresses and bedspreads. Our bed sheet bands are equipped with fixing clips at both ends, which are firmly attached to the bed sheet and can be perfectly adapted to sheets and sheets of all sizes. 2. Adjustable length tensioner: used for the required tension. Suitable for sheets and sheets. Keep the sheets in place all night. Ideal for bed linen, mattresses and tablecloths. For ironing covers. Adjustable and flexible and can also be crossed. 3. Knife tensioner: with a built-in plastic tightening system to prevent damage to fabrics. The wider elastic provides a stable and firm grip for heavy applications. Lift the mattress and attach the clip to the edge of the bed sheet. Comb the four corners. The perfect fastening system for bed linen and mattresses. 4. Comfortable sleep: Our bed sheet fastener can fix bed sheets. Durable and easy to use. Simply attach sturdy clips and make the bed as you normally would. Our sheet gripper gives you smooth and secure sheets so you can sleep comfortably. 5. Usage: Our bed sheet clip can be used to lay the bed sheet flat or built-in, and to install other bed covers such as mattresses. They can be used to attach sheets, mattresses, tablecloths, duvet covers, comforters, blankets, pillows and adjustable beds, pillows, memory foam, sofa beds, etc.