VEVOR Garden Cart, Durable Poly Dump Cart with Simple Assembly Steel Frame, Versatile Dump Wagon with Dual-Function Handle, 6.48 cu.ft Utility Barrow 1200 lbs Load, 13 inch Wheels

According to the product description, it comes with a mesh cover that helps secure contents during transport.

They are inflated. Might be able to get no flats at Harbor Freight, but you’d need wheels to fit the axles.

The tires are a hard plastic, we’ve had no issues with the tires

No, it's an air-filled tire.

Upon purchasing the product, the warranty service automatically commences. You will be entitled to one year's warranty coverage.

The tire pressure is supposed to be 30psi.