Welcome to our store! The wide elastic bands are built to handle strong tension, keeping your sheets in place and tidy, fitting your crib, twin, full, queen, king, and Cal king size mattress covers. Say goodbye to those annoying messy or wrinkled sheets once and for all! Adjustable and elastic, maximum extension length: 100 centimeters PREMIUM MATERIAL: Made with the finest quality polyester bungee band, durable plastic buckle, and sturdy metal clips, were carefully tested to ensure all bed sheet corner straps are in good condition. PRACTICAL MATTRESS BANDS: These versatile bands are a must-have for wrinkle-free sheets. They are practical for securing regular or fitted sheets, as well as other covers, including hospital sheets, sofa cushions, mattresses, tablecloth covers, chairs, boats, car and motorcycle covers, ironing board covers, tablecloths, slipcovers, and more. Practicality at its finest! EASY TO USE: Installing and removing our sheet fasteners is a breeze, taking only a few quick steps. The sturdy metal clips bite firmly into the edges and corners of your sheets, ensuring a tight and secure grip that holds them firmly in place. No more worries about annoying sheets slipping during your cleaning! Satisfaction: Our customers are our top priority. If you find any problems with the product after receiving it, such as damage, incorrect quantity of goods, please contact the seller immediately, we will do our best to provide you with satisfactory customer service.