Madeira Rayon no.40 is a machine-embroidery thread made to impress with its gorgeous yet subtle shine. Through its complex production process, the resulting core-spun thread is supremely strong and break-resistant suiting both high-speed embroidery machines and semi-pro home sewing machines. Made from 100% viscose, this thread does not shrink and can be ironed. Washable up to 95 degrees and suitable for tumble-drying at low temperatures. Each spool of Madeira Rayon no.40 holds 1000 metres of thread. Available in a wide range of colours.