Length:Adjustable from 11.8" to 47" (30cm to 120cm),providing great flexibility,meets various needs of families. Protection:the closure is constructed of system plastic,does not harm the fabric,Metal clasps for a secure grip. Sturdy and durable: the fasteners are made of sturdy and heavy metal clips of elastic tensioners, which will firmly hold your bed sheets and won't break easily, the fasteners will last a long time. Multi-Function:Adjustable Professional Design to Fit All Types of Sheets, Hospital Beds, Air Beds, Adjustable Beds, Water Beds, Futons, RVs, and Hide-a Beds. Easily tie: The bed sheet ties are very easy to use thanks to its human design. You can easily put it on your bad sheets in seconds without any tools, controlling the corners in place. Product Information Size:M-8Pcs | Colour:Black Technical Color Black Package dimensions 17.6 x 12 x 4 cm; 173 grams Item weight 173g Product Still wondering how to sleep well? has set itself the goal of providing you with the maximum quality of healthy and restful sleep, and is to provide high quality products at a reasonable cost to our customers. All products therefore meet the highest quality standards and are made from carefully selected products. Information: - These sheet clips will firmly hold your bed sheets. never worry about loose or wrinkled sheets again. - Integrated plastic stretcher system to protect the fabric. - Suitable for fitted sheets or flat sheets on various types of beds such as standard size beds, irregular shaped beds, foam beds, pillow top mattresses, air mattresses, RV beds and travel trailer and more. - Other Uses: Table Cloths, Grill Covers, Cars Seat Covers, Boats Seat Covers, Motorcycle Seat Covers, Scooters Sofa Seat Covers, Chair Covers, Fitted Sheets, mattresses, and even on the blankets of ironing board.