Wire gauge: 1.6-2.0mm Spring Diameter (2 ends): 5.0—7.5cm Core Coil Diameter: 6.0-8.0cm Height: 8-18cm Turns: 4/5/6 High carbon steel Non-woven fabric: 75gsm Regular Size: 39"x75" 54"x75" 60"x80" 72"x84" 76"x80" (other sizes as per customer's requirements) Pocket spring is the ultimate total-support sleep system with each spring individually nested in non-woven pockets. Giving freedom of movement to each spring and conforming to the unique shape of your body. When you toss and turn, the pocked coil springs go to work, softening and cushioning your body at every turn, so you can sleep peacefully and undisturbed.