Gtermann mara 120 industrial 100 polyester thread is ideal for use on any sewing machine but is also suitable for hand sewingthe reels hold 1 000m of extremely lint free thread which is resistant to breaking giving superior strength and durability in the seamone of the strongest 2 strand threads available and an incredibly economical way to stock your textiles roomrecommended machine needle size nm70 nm90wash at up to 60c