Message from the Seller: Hi! Welcome to "Yousheng"Fashion! Quality is the first with best service,Customers all are our Best friends! Hope our products will satisfy you. Have a happy life! Item Name: Bed Sheet Clip Features: Anti-deform, Long Lasting, Reusable Material : Plastic Size Details: S: 10cm x 2.5cm x 9.5cm or 3.94" x 0.98" x 3.74" (Approx.) L: 10cm x 2.5cm x 17.5cm or 3.94" x 0.98" x 6.89" (Approx.) Specifications: This product is perfectly suitable for home, household, dorm, bedroom, etc. S size is suitable for mattresses above 8cm, and L size is suitable for mattresses above 15.5cm. It is made of high-quality plastic material. There are 2 different sizes for you to choose from. Adopted reinforced plastic material design, these compression-resistant and high hardness quilt fastener clips has ability to support the weight of heavy-duty bedsheet or mattresses, and no need to worry about being deformed. Designed with needle-free, these bedsheet clips are safe to use without leaving any ugly traces on the quilt sheet or mattresses compared to other needle type quilt clips. Note: 1. The product picture is affected by light, and there may be a little error with the real thing, please understand! 2. Please refer to the description section for the product size! 3. Physical package, please refer to the description list! Package Includes: 4 x Bed Sheet Clips