The Karpen Luxury 8way handtied box springs provide balanced alignment, correct support, and better weight balance of the mattress. Fully upholstered working support provided by a steel grid and lumber Upholstery, 13 lbs of cotton 800 knots tied by hand Mattress sold separately Overall, approx. 61"W x 81"D x 7"T Vacuum periodically Made in USA Boxed weight, approximately 100.0 lbs