Description Description: This sheet fasteners will keep your bed sheet in place and end the daily messy or wrinkled of sheet. Easy to install, just insert the bed sheet holder under the mattress, tension and press the button fix it. These Sheet holder usable on different sized beds, Sheet suspenders queen, king twin, bedding accessories. Save time to fixing your bed sheet,Adjustable height, elasticity,Anti-slip design, claw buckle fixation, elastic anti-tear, easy installation, peace of mind without needles. Perfect for fixing and removing sheets, sheets, mattress covers, blankets, etc.. Specification: Material:Metal+Nylon Unstretched radius:Approx.60cm/23.62inch Maximum stretching radius:Approx.140cm/55.12inch Package Includes: 1 Pieces Bed Sheet Holder(4 Pack) Note: Size for manual measurement, there may be a 0 to 1 cm error, belongs to the normal phenomenon. Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!