I've got one off ebay for a tenner but don't use it much now (every now and then to check my method). Generally when it starts to warm - that's your stretching done and when it's getting to be too hot to touch, you're all done.
@hippy started
London Fixed Gear and Single-Speed is a community of predominantly fixed gear and single-speed cyclists in and around London, UK.
This site is supported almost exclusively by donations. Please consider donating a small amount regularly.
I've got one off ebay for a tenner but don't use it much now (every now and then to check my method). Generally when it starts to warm - that's your stretching done and when it's getting to be too hot to touch, you're all done.