Heavy Duty Elastic Straps and Nickel-plated Clamps Material: This Bed Sheet Fasteners are made of sturdy chrome metal clips and heavy duty elastic bungee cords that will grip your bed sheets firmly. Easy to put on and keeps sheets in place and no more fixing sheets, adjustable length allows desired tension. Triangle designs, which avoiding the elastic sliding all the time. Stable Triangle Design: As we know,triangle is more stable than other shape. So Our triangel bed sheet suspenders can keep your bed and bed sheet tidy all the time. Adjustable Eleasticity Starps: Wider elastic provides stable and stronger grip for heavy duty purpose; Easy to put on and keeps corners in place, Life savers Perfect Fitted Bed Sheet and mattress Cover Fastening System. Wide Compatibility: Our Bed Sheet Holder Strips fit with fitted sheet and flat sheet; This versatile bed sheet gripper works with all types of bedding and with strong build of these straps, your bed sheet will stay in place for a long time and keep your bed always looking great. Also this Fasteners can be used as tablecloths covers,grill covers, cars seat cover, boats seat cover, motorcycle seat cover, scooters seat cover, couch seat cover, chairs seat cover and more. Customer Service: specialized in Home and try our best to offer the better product and customer service.If you have any quesiton, feel free to contact with us. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.