Will it fade and be difficult to clean if it is left in the yard for a long time?

made of material, which has excellent weather resistance, will not fade or decay, and can be easily wiped clean with a towel and some soapy water

Is the material wood? It looks like it has a wood grain texture. Is it sturdy enough?

Yes, this is composite material with a wood grain-like surface that is easy to clean. High impact strength and durability

Can tall and overweight people sit in this chair? Will the metal parts rust?

The seat is wide enough, the backrest is high enough, and the structure is sturdy enough to easily accommodate the size of the larger product, which is 33 x 29 x 35.8 inches. The metal part is made of 304 stainless steel, so it will not rust

Is this chair easy to assemble? Can it be folded up for easy storage?

It's easy to assemble, an adult can put it together in 20 minutes, and the chair has two pins that can be inserted for added stability when in use, but can also be easily removed when folded.