Used PP bands. I've been reusing them because it's a waste to throw them away, but I'm listing them now because I have a lot. There are 30 loops, each about 80cm long. Mostly yellow, but there might be blue, brown, and white ones too. The width varies from about 1 to 1.5cm. If you want bands of a specific width or a uniform size, please purchase new ones at a store. These are reused items, so please understand this before purchasing. Thank you.