EASY ASSEMBLY: Box spring parts, required hardware and clear installation instructions are all packed in the box, you can install this twin size box spring in 20-30 minutes. BOX SPRING COVER INCLUDED: The twin box springonly includes a fabric box spring cover that is easy to remove for cleaning. NOISE FREE DESIGN: No squeak high box spring twin provide you a quiet, peaceful and comfortable and sleeping time. STURDY AND STABLE: We choose high quality metal materials to prevent the whole box spring structure twisting. Maximum weight recommendation: 1000 pounds. DIMENSIONES: Twin bed box spring dimensions: 74.6"L x 37.6"W x 10"H for mattress size: 75"L x 38"W