Pushing for wheelbarrow fitting

Wheel barrow had a axle of 16mm. New wheels have 20mm hole. Also new wheels are narrower (73mm) than old ones (95mm).

So I whipped up a bushing which fits the new tires to the wheelbarrow.

80% infill to the middle section and 20% rest. What is "middle" you ask? I just put some 50% of the middle section with 80% fill to make it a bit stronger.

Lets see how well it holds up. Should be ok as new wheel has real bearings unlike the old ones.

Material is PLA.