Qualities of monofilament thread?

MonoPoly invisible polyester thread

NTEC High Quality 100% Nylon Monofilament Sewing Thread Suppliers, Manufacturers China - Low Price - NTEC

A Guide to Using Monofilament Thread - WeAllSew

Monofilament Thread at Rs 230/kilogram, Sewing Threads in Mumbai

How to select Fishing Line – VARIVAS

J P Extrusiontech (Pvt) Ltd.

#40 (.009) high-quality monofilament nylon thread used for blind stitch machines. Please note: actual color may vary from picture due to computer

WAWAK Perform-X Monofilament Invisible Thread - #40 - Tex 40 - Clear

CoatsKnit Mono, 100% Polyester Monofilament Yarn - Increased Breathability

#52 (0.010) high quality monofilament nylon thread used for blind stitch machines. 1/4 pound does not come in plastic dome. Please note: actual color

WAWAK Perform-X Nylon Monofilament Thread - #52 - Tex 52 - 1/4 lbs. - Clear

High Quality Nylon Monofilament Thread for Serging - China Nylon Monofilament Thread and Nylon Thread price

Monofilament yarn, what is? the use end?

Tex 35 Clear Monofilament 24 Ounce Spool *** SOLD IN QUANTIT