Specification:Material: polyester, stainless steelColor: as shown(white)Size: as shown(maximum stretch length of sheet straps: 60 cm/24"; adjustable range: 36.5 60 cm)Package Content:4pcs Bed Sheet Straps8 Pairs Duvet Snap Clips with 1 Set Needle ThreadFeatures:EFFORTLESS INSTALLATION:Easily attach the fourpiece bed sheet holder straps to the corners of your mattress sheet. Slide them underneath and adjust the buckle for optimal tension. These mattress clips to keep sheets on eliminate the need to lift heavy mattresses, ideal for winter holiday bed preparation.ENHANCE YOUR SLEEPING EXPERIENCE:Our innovative fixation method redefines convenience and comfort. Designed to enhance your sleeping experience, these duvet clips fasteners provide unmatched stability and help extend the life of your down comforter. Once installed, the down comforter core is firmly secured, preventing any unwanted movement and providing a stable sleeping environment. Regardless of how much you toss and turn, the comforter stays in place, enhancing your comfort during sleep.