Inline Skate Wheels with Bearings, 3 Inch Roller Blade Wheels 76mm Outdoor and Indoor Clear Wheel for Office Chairs, Luggage (4 Pack, Silver)

At least in the USA, 4 roller blade wheels is considerably less. They’re great for rolling while folded. But heel strike with the wider wheels was an issue for me. https://a.co/d/05G6FkcN