White cotton thread, made in the USSR GOST (state standart) 6309-80. Thickness 0.3 mm. For sewing buttons and uniforms without a modern "plastic". Price for 1 reel. Winding 1000 m.
Markings: special 1st grade. The number of layers 9 is “especially durable” (maximum possible strength). Designation (trade number) 30. Breaking load up to 2195 gs.