Serta Luxurious Micro-Plush Low-Voltage Electric Heated Triple-Rib Throw, Midnight Blue 100% Polyester Made in the USA and Imported Safe and warm patented non-hazardous low voltage technology is safer than others on the market; single control automatically shuts off after 10-hour for convenience, safety and savings No more bulky wires; the ultra-thin wires inside the Serta throws are almost impossible to feel; no annoying hot or cold spots Convenient temperature pre-heat and hold feature that makes sure that your throw is warm and cozy before you snuggle into it; built in over-temperature protection for safety and peace of mind At 45-by-60-Inch in size it's larger than most on the market making it perfect as a couch snuggling companion or as another layer on your bed Luxurious incredibly soft micro-plush fabric and decorative triple-rib design that is completely machine washable and dryable without any pilling, shrinking or stretching