O-Band No. 18 * 4.5 kg (500g) x 9 bags (Large) 1 bag containing 2.5 kg x 1 bag 2.5 kg (Small) 500g x 4 2 kg * Number of bands: Approximately 3000 bands x 9 * Made with natural rubber * Diameter: 70 mm * Cut width (thickness): 1.1 mm * Made in Japan * Kyowa Co., Ltd. How about for commercial use? This is a familiar binding material (rubber bands) that is convenient and has a wide range of uses, using genuine, high-quality rubber that has been known as amber-colored rubber bands. It also complies with food additive standards. Purchased about two and a half years ago. Stored in a cool, dark place. The product is in good condition. Thank you for your consideration. Thank you for viewing.