Compared to other similar products, these bed sheet clips can withstand the weight of heavy-duty bed sheets or mattresses without deforming or coming loose easily, thanks to their high hardness, compression resistance, and anti-slip properties. Designed with a needle-free feature, these bed sheet clips are safe to use and do not leave any marks on the bed sheets or mattresses, unlike needle-type clips. Made of high-quality plastic material. Available in two different sizes. Suitable for use at home, in dorms, bedrooms, and other household settings. S size fits mattresses over 8 cm thick, and L size fits mattresses over 15.5 cm thick. Item Name: Bed Sheet Clip Material: Plastic Features: Anti-deform, Long-lasting, Reusable Size Details: S: 10 cm x 2.5 cm x 9.5 cm / 3.94" x 0.98" x 3.74" (Approx.) L: 10 cm x 2.5 cm x 17.5 cm / 3.94" x 0.98" x 6.89" (Approx.) Notes: Due to differences in lighting and screen settings, the item's color may vary slightly from the images. Please allow slight variations in dimensions due to manual measurement. Package Includes: 4 x Bed Sheet Clips