I'd never heard of a 'Cyr Wheel' until a few weeks ago.
It's a single large ring made of aluminium or steel with a diameter approximately 10 to 15 cm (4 to 6 in) taller than the performer. The performer stands inside the Cyr wheel and grasps its rim, causing it to roll and spin gyroscopically while performing acrobatic moves in and around the rotating wheel.

This amazing video, (Ft. Circusman Alexis) has a track by Jeremy Buck called 'Turn My Ship Around'. I'd not heard of him either but it turns out he's a 'Jack (or Jeremy) of all trades' as he wrote, produced, performed, engineered, and mixed the song, PLUS he also directed and edited the music video.
Best on Full Screen [   ]. You may get hypnotised by the spinning Cyr wheel as you watch. For your own safety please remain seated until the performance is over.

I wonder how many of his fingers got squashed before he mastered this activity ?