Paracord Planet 1/16 inch Elastic Bungee Nylon Shock Cord Crafting Stretch String - Various Colors - 10, 25, 50, 100, 250, and 1000 Foot Lengths Made in USA - Walmart.com
Amazon.co.jp: Paracord Planet 1/4" Elastic Cord Craft Elastic String - Choose from 10, 25, 50, and 100 Feet - Made in USA - 10 Feet Black : Industrial & Scientific