... Material: 85% Acrylic, 10% Spandex, 5% Conductive fiber; 2. Size: 19-21cm, can be customized ... made of acrylic material, polyurethane and conductive fiber. As we can see from the images ... not only that, the white parts features special conductive fiber in order that you can conveniently operate ... Material: 85% Acrylic, 10% Spandex, 5% Conductive fiber; 2. Size: 19-21cm, can be customized according ...