Armchair Conubia is modeled according to existing, real-world furniture, which you can find on: www.archiproducts.com.

The whole armchair has a fabric material, whose color is changeable, and the legs have a black plastic material.

The whole model is not joined in one mesh, it contains several parts, which are parented to an empty object.

Just mark the empty object, and snap your whole model where you want.