Package Included: You will receive 16 sets of duvet cover clips: 16 mushroom buttons, 16 spikes. The long nails are suitable for thicker fabrics such as spring, autumn and winter quilts, cushions and seat cushions. Unique Design: These duvet clips are designed with one-touch unlocking. Nail tips can easily penetrate multiple layers of fabric. The internal material of the clip is high-quality aluminum, which is safer to use and greatly reduces the risk of being punctured. The semi-circular mushroom shape can not only hold the duvet well in place, but also can embellish the quilt as a beautiful decoration. Easy to Use: Just put the needle through the quilt, insert the nail into the round hole at the other end to fix it. When you want to take it off, just press the button to unlock it, very easy to take it off. High Quality Material: The surface of mushroom buttons and nails is cotton. The texture is soft and does not feel cold when it touches the body. The ABS material on the bottom is strong, wear-resistant and durable. LIGHTWEIGHT AND SAFE: With these lightweight and compact pin fasteners, you don't need to use bulky clips or bulky magnets that can damage the comforter or make it heavy.