Iron Note: Sheet clips are for mattresses that are 2 inches thick or more. Place the sheet on the raised edge of the sheet frame and secure it with the sheet clamp. However, it is not suitable for mattresses with side rails that are too small or without side rails, only for mattresses with raised edges. Smooth and durable material: made of high quality ABS hard plastic, not easy to bend. Can be used as a snack clip. Lightweight and durable: This sheet clip is lightweight and simple, safe and reliable, you can easily change the sheets without hurting your hands. Size: 4 "LX2 "WX2.7 "H Warm tip: Please keep the unused part of the sheet clip assembly out of the reach of children, as these parts are sized like toys to prevent children from accidentally eating them down their throats or pinching their fingers. If you are not satisfied with your purchase, please feel free to let us know and we will do our best to improve your shopping experience