Three piece bed frame: The triple protection design is more effective than the two piece bed frame. It can keep your bed sheets tidy all the time, without worrying about them being messy or wrinkled.Size: The sling is 16cm long and 2.5cm wide, with elasticity.Easy to connect: These bed sheet fasteners are easy to put on, preventing the fitted sheets from slipping from the corners all night, making your bed always look great. Don't worry about the sheets getting messy or wrinkled anymore.High quality: These bed corner brackets are composed of elastic bands, metal clips, and a built-in plastic clamping system, which can firmly grip the bed sheets, protect the fabric from injury, and not cause damage to the bed sheets.4PCS bed board clamp, equipped with elastic bands, can provide the required tension, suitable for all edges of heavy-duty bed boards. Adjusting them to the length you need is very convenient.Multipurpose: Used for bed sheets, mattresses, tablecloths, ironing board covers, slipper covers, etc.