Zenvida Nesting Side/End Tables Set of 3 Modern Rustic Stacking Accent Furniture

Are these tables weatherproof? Can I put them out on my backyard patio?

What is the inner dimension of the large table?? ... will it fit a mini fridge its width is 17.25" ??

Are there pictures of the pieces included and the directions? What tools are needed? I have trouble putting things together.

What is the material covering the table top? Is it wood veneer? Or what is it?