[Approx. 11mm width (12 calls)]
[Approx. 6mm width (6 calls)]
[About 10mm width (10 calls)]
[Approx. 8mm width (8 calls)]
[Approx. 4mm width (4 calls)]
Flat rubber made from synthetic rubber. It is durable and resistant to washing. Recommended for everyday clothing. Material: Synthetic rubber (Nitron) / Polyester thread; Stretch: 250% Country of Manufacture: Japan. *Please use rubber about 80% of the required size.