PolyNeon 40 is Madeira's well established Polyester embroidery thread PolyNeon is made using special winding methods, unique to Madeira, which guarantee it will run outstandingly well at high speeds without looping often associated with other Polyester embroidery threads A further advantage PolyNeon thread is its wonderful shine, almost approaching the brilliance of Madeira Classic - better than any other Polyester embroidery thread PolyNeon is dyed using special dye processes, making it extremely resistant to chlorine, bleaches and industrial laundering Chlorine treatments up to 30 minutes At temperature up to 30C With up to 20g Chlorine/litre water Thread thickness: No. 40 Recommended needle size: 65-75 Maximum washing temperature: 95C