This Biddeford TC13BA 4 Prong Analog Heated Electric Blanket Controller with Auto-off is a must-have for anyone looking for a comfortable and cozy sleeping experience. The controller is designed to work with a variety of materials including acrylic, fleece, cotton-blend, cotton, and polyester-blend. It comes in a white color and has a size of 5 inches in both length and width. With this electric-warming-pads controller, you can enjoy a warm and comfortable sleeping environment without worrying about the item overheating. It has a 4 prong design that ensures even and efficient heating, and the auto-off feature provides added safety. Whether you're an adult or a child, this controller is perfect for anyone who wants to enjoy a cozy night's sleep.