Thank you for viewing! ☆ Brand new, unused ☆ Free shipping ☆ Instant purchase OK! ✼••┈┈••✼••┈┈••✼✼••┈┈••✼••┈┈••✼✼••┈┈••✼••┈┈••✼ Aluminum bobbin specifically for industrial and professional sewing machines. Scratches and warping on the bobbin can significantly affect thread tension. As it is a consumable item, we recommend replacing it early if you feel any discomfort. Lightweight aluminum! Thread tension is more stable compared to iron bobbins. Aluminum is rust-resistant! You can use it without any maintenance. The [cut type] with grooves in the shaft can be set in the thread winder ◎ Size ■ Approximately 2.0cm x Approximately 0.8cm, Hole diameter Approximately 0.6cm Material ■ Aluminum Set quantity ■ Set of 20 ✼••┈┈••✼••┈┈••✼✼••┈┈••✼••┈┈••✼✼••┈┈••✼••┈┈••✼ ● Notes ・Shipped in simple packaging. ・As it is an imported product, there may be small scratches. (Please refrain from purchasing if you are sensitive to this) ※ In the unlikely event of a problem such as a defective product, please contact us before giving a rating. We will respond promptly. ※ Due to the influence of your monitor or smartphone, there may be slight differences in the texture and color of the product. Please understand this in advance.