Full-Size Adjustable Heating Element Designed to fit all bedding sizes, it securely fastens blankets and sheets so children can sleep warmly all night long, eliminating the hassle of kicking their blankets and catching colds. Super-Easy Three-Second Installation No tools are required, simply unlock the clip, insert the blanket, and lock it in place. Installation can be completed in three steps, making it simple and convenient. Innovative Non-Marking and Non-Slip Design The needle-free U-shaped structure fits snugly onto the blanket, leaving no marks after installation. The non-slip texture enhances grip and prevents the blanket from slipping. Safe and Durable ABS Material High-quality ABS plastic has been selected, which has good elasticity, wear resistance, and is non-irritating. It can be used for a long time without harming children's delicate skin. Multifunctional fastening clips for all seasons Not only suitable for winter and summer blankets, but also for fastening curtains, clothes, etc., to meet the practical needs of different family situations.