Ebay item no 187221820721,could be home made but look similar to Ariel design.

Those look like Ariel foot rests that have been cobbled onto Royal Enfield handlebar clamps. Ron

https://www.ebay.co.uk/itm/187221820721?_skw=187221820721&itmmeta=01JVSYJ5Y3SNHRM8ZPQ9NPDA5C&hash=item2b974a4531:g:nA0AAOSwosBoJK8F&itmprp=enc%3AAQAKAAAA0FkggFvd1GGDu0w3yXCmi1dsXfoCvziJ3lkcRUqlvGTqbACJaqMpMLlg%2Bosvd8LL%2FA11m4mnEMFrAmJnntmhSXrRL%2BUDesm8qY17BeK%2Beh9CqxNKakrSRWToC%2FqNmQHsUviITsqVb4jQNUsZCGzTuiNfPlkWNvMtWuyo9TjFMj7OJtHivvrBdM0t6vvR4AtPuyHBgFYodqE73m0HasD7VRkAbXoQbgONveMUtk9SSqcvs0Ndqf6rSzjiPi1ceXjEJLQBpcst%2FmRl4kJvIMiiBzk%3D%7Ctkp%3ABk9SR57fyL7eZQ

email (option): ronpier@talk21.com