Please confirm the exact color yourself using the color sample. There is a bulge on the upper winding part of one spool. Please refer to images 8-9. I think there is no problem with use. TOYOBO Lock Sewing Thread 4 spools T80 (A-235) Slightly bluish dark gray? Dark gray leaning towards navy? One color from the color sample's bluish, muted gray series. It's not clearly blue, but you can see it faintly from a distance. It's more like it's not just a single dark gray color. All 4 spools are about 75-80 grams. Please be sure to confirm the exact color yourself. There are no noticeable stains, but I may have overlooked some light stains from storage. Please forgive me. 3 spools are 1480 yen. Please let me know in the comments. The above colors are based on the seller's subjective opinion. Please confirm the exact color. For lock machines, for thin fabric, for plain stitching. Price reduction is not possible. Please refrain from asking for a discount. #LockSewingThread