MonoPoly on prewound Class 15 (A-style) bobbins. Smoke. 220 yds. per bobbin. 1 dozen. MonoPoly is .004" (.1mm) in diameter (90 denier) = Very fine thread.
MonoPoly Prewound Clear Class 15 (A-Style) Dozen Pack. – Capital Books and Wellness
decobob — Blog - WonderFil
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MoB/ MonoPoly - Julie's Superior Threads - the superior thread for your work
Smokiesopoly Smoky Mountains Gatlinburg Monopoly Smokies Opoly Board Game for sale online
Prewound Bobbins
MonoPoly Invisible Polyester Thread .004mm 2200yds Smoke – Sew Hot
9 Ways to Sew With Fine 80-100wt Threads - WonderFil Australia
Thread - Page 33 - page 33
MoB/ MonoPoly - Julie's Superior Threads - the superior thread for your work
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Threads
MonoPoly invisible polyester thread