Bonnel Coils
Traditional Support

The Bonnell coil system using hundreds of crushproof double-cone coils made from high-resistance phosphate steel. The maxi 2.5 Bonnell version guarantees a degree of rigidity and higher weight-bearing thanks to the increased

diameter of the coil. The whole structure is contained in a box with a layer of Aertech Plus which avoids compression of single contact points and ensures better comfort.