■ Size: 6.6 ft (20 m) roll Main unit W 2.3 x 2.7 inches (58 x 69 mm) ■ Material: 100% polyester (sturdy dyed) ■ This is the perfect sewing thread for the handle of the bag and buttons attached, and the clasp for sewing. Durable dying, so it is resistant to fading and discoloration, and the thickness is #5 (#5) so it is sewn tightly.
(From Amazon.co.jp)