Material: nylon + metal clips. Color: Black. Size: the shortest (relaxed state) 100-150 cm The longest (stretched state) 200-250 cm Weight: 132 g. Package includes: 2 x bed sheet straps Description: Bed sheet fasteners: Made of high quality nylon + metal clips, highly elastic fit for most fitted sheet and bed sheet. These sheet tensioners hold your sheets in place without readjusting and keep them in place all the time. And never damage your leaves. Robust clamps: Wide elastic band provides a stable and stronger hold for heavy purposes. The metal clamps hold your sheet metal in place. Highly elastic bed sheet tensioners offer a stable and strong hold for your sheets. Adjustable Corner Bracket: The sheet holder is adjustable, which allows you to find the tension you want and keep your sheets neat and tidy all day. Easy to Use: Several simple steps to attach and hold your sheets to keep your fitted sheets from slipping off corners. About Shipping: All items will be shipped within 3 business days after the payment is received. Most times you will receive them within 8-12 days then. The specific delivery time is depend on circumstances.Any questions, please feel free to contact us During the shopping process, if you have any questions, please feel free to consult us, we will reply you within 24 hours, wish you a happy shopping Thanks for your cooperation and we'll make you feel satisfied.