Fee: £ 12.50 for 28 days
Please find manufacturers instructions here:
https://www.facebook.com/yaroslings/videos/hoe-to-use-a-ringsling-a-ringsling-is-a-great-way-to-carry-your-baby-especially-/262477831491929/
You may find this photo tutorial helpful too:
https://www.carryingmatters.co.uk/ring-sling-photo-tutorial/