Indoor & Outdoor - While Reaching Exhilarating Speeds Up To 6 Mph / 10 Km/Hr; Adult Friendly It Supports Up To 220 Lb / 100 Kg On Smooth, Flat Surfaces. Plasmart Cautions Against Using Plasmacars With Standard Wheels On Hardwood Floors. Plasmacar Wheels May Damage Some Floors. Please Note That The Plasmacar Booklet Warns That It Is Not Recommended For Use On Wooden Floors.