These are nylon coated 7-strand stainless steel thread for jewelry making.
We sell 2 rolls inside a bag.
Size and length as follows:
0.3mm----about 25mm/roll and 2 rolls per bag.
0.38mm----about 25mm/roll and 2 rolls per bag.
0.5mm----about 15mm/roll and 2 rolls per bag.
0.6mm----about 13mm/roll and 2 rolls per bag.
0.7mm----about 10mm/roll and 2 rolls per bag.
0.8mm----about 8mm/roll and 2 rolls per bag.
1.0mm----about 5mm/roll and 2 rolls per bag.