Set of 6 industrial sewing machine threads CONEX #20 Natural color only 1000m/roll Brand new, unused. Due to being industrial materials, these threads may not be suitable for general household sewing machines. Please check your usage environment and compatible machines before purchasing. 【Example Uses】 ・Sewing industrial insulation materials, heat-resistant cloths ・Manufacturing factory equipment and pipe covers ・Processing heat-resistant and heat-shielding sheets ・For commercial use, prototypes, and repairs ★Please inquire about individual sales. ★Instant purchase is possible without comments.