COMINGFIT® 50kg Capacity Almost Universal Adjustable Bike Luggage Cargo Rack Bicycle Accessories Equipment Stand Footstock Bicycle Carrier Racks

Can this rack be installed on a bike with full length mudguards?

Does it fit a fat tyre mountain bike

How tall is the seat post clamp? I have about 35mm of post I can clamp it too, not sure if this is enough?

What is the minimum wheel size that this will fit? I see on similar items a size of about 11" for the downward arm. To use on child's bike 20" wheel