Unique Design: The clip has a One-Click unlocking design. The nail tip can easily penetrate through multiple layers of fabric. The internal material of the clip is high-quality aluminum, which is safer to use and greatly reduce the risk of puncture. The semicircle mushroom shape can not only fix the duvet well from shifting, but also embellish the quilt as a nice decoration. Light & Safe : With these light and small fixing clips, you don't need to use bulky clips or bulky magnets, which may damage the quilt or make it heavy. As practical tools for quilts, cushions, curtains, sofa covers and pillow covers they wont loosen easily. Simple and elegant, these small things would save your time or effort and bring good experience to you. Simple to Use: You only need to pass the needle through the quilt and put the nail in the round hole on the other end to fix it. When you want to remove it, you can press the button to unlock it directly, which is very easy to remove. High-quality Materials: Mushroom buttons and nails have a cotton surface. The texture is soft and you won't feel cold when it touches the body. The ABS material at the bottom is strong, wear-resistant and durable. Package List: You will receive 16 sets of Duvet Cover Clips : 16 x Mushroom Buttons, 16 x Cloth Nails, Cloth nails can be applied to thick fabrics such as spring, autumn and winter quilts, back cushions and seat cushions.