Polyarn Serger Thread 1000yd 6ct SPRUCE BOX06

Polyarn is a textured woollie-like polyester thread which is a replacement for similar nylon threads. Designed specifically for serger sewing, Polyarn has excellent stretch and dosen’t yellow or go brittle over time like nylon threads. Heat resistant. Colorfast. Iron safe on low and medium settings. 100% Polyester. 1000yd spools. 6 spools per box.